The Dictionary of the Philosophy of Mind.  (b. 1842, New York, NY, d. 1910. M.D., Harvard University, 1871). James is bet know for The Principles of Psychology, which is an enormous two volume work that addresses the full spectrum of psychological phenomena discussed in James’ time, including brain function, habit, ‘the automaton-theory’, the stream of thought, the self, attention, association, the perception of time, memory, sensation, imagination, perception, reasoning, voluntary movement, instinct, the emotions, will, and hypnotism.

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• A chain is no stronger than its weakest link, and life is after all a chain.
• A great many people think they are thinking when they are merely rearranging their prejudices.
• A man has as many social selves as there are individuals who recognize him.
• Acceptance of what has happened is the first step to overcoming the consequences of any misfortune.
• Act as if what you do makes a difference. It does.
• Action seems to follow feeling, but really action and feeling go together; and by regulating the action, which is under the more direct control of the will, we can indirectly regulate the feeling, which is not.
• All natural goods perish. Riches take wings; fame is a breath; love is a cheat; youth and health and pleasure vanish.
• An act has no ethical quality whatever unless it be chosen out of several all equally possible.
• An idea, to be suggestive, must come to the individual with the force of revelation.
• As there is no worse lie than a truth misunderstood by those who hear it, so reasonable arguments, challenges to magnanimity, and appeals to sympathy or justice, are folly when we are dealing with human crocodiles and boa-constrictors.
• Be willing to have it so. Acceptance of what has happened is the first step to overcoming the consequences of any misfortune.
• Begin to be now what you will be hereafter.
• Belief creates the actual fact.
• Believe that life is worth living and your belief will help create the fact.
• Common sense and a sense of humor are the same thing, moving at different speeds. A sense of humor is just common sense, dancing.
• Compared to what we ought to be, we are half awake.
• Compared to what we ought to be, we are only half awake. We are making use of only a small part of our mental and physical resources.
• Do every day or two something for no other reason than you would rather not do it, so that when the hour of dire need draws nigh, it may find you not unnerved and untrained to stand the test.
• Do something everyday for no other reason than you would rather not do it, so that when the hour of dire need draws nigh, it may find you not unnerved and untrained to stand the test.
• Every man who possibly can should force himself to a holiday of a full month in a year, whether he feels like taking it or not.
• Everybody should do at least two things each day that he hates to do, just for practice.
• Everyone knows that on any given day there are energies slumbering in him which the incitement's of that day do not call forth. Compared with what we ought to be, we are only half awake. The human individual usually lives far within his limits.
• Faith means belief in something concerning which doubt is theoretically possible.
• Genius... means little more than the faculty of perceiving in an unhabitual way.
• Great emergencies and crises show us how much greater our vital resources are than we had supposed.
• How to gain, how to keep, how to recover happiness is in fact for most men at all times the secret motive of all they do, and of all they are willing to endure.
• Human beings can alter their lives by altering their attitudes of mind.
• I will act as if what I do makes a difference.
• If any organism fails to fulfill its potentialities, it becomes sick.
• If merely 'feeling good' could decide, drunkenness would be the supremely valid human experience.
• If the grace of God miraculously operates, it probably operates through the subliminal door.
• If you believe that feeling bad or worrying long enough will change a past or future event, then you are residing on another planet with a different reality system.
• If you want a quality, act as if you already had it.
• If you want a trait, act as if you already have the trait.
• In business for yourself, not by yourself.
• Individuality is founded in feeling; and the recesses of feeling, the darker, blinder strata of character, are the only places in the world in which we catch real fact in the making, and directly perceive how events happen, and how work is actually done.
• Is life worth living? It all depends on the liver.
• It is only by risking our persons from one hour to another that we live at all. And often enough our faith beforehand in an uncertified result is the only thing that makes the result come true.
• It is our attitude at the beginning of a difficult task which, more than anything else, will affect its successful outcome.
• It is well for the world that in most of us, by the age of thirty, the character has set like plaster, and will never soften again.
• It is wrong always, everywhere, and for everyone, to believe anything upon insufficient evidence.
• Knowledge about life is one thing; effective occupation of a place in life, with its dynamic currents passing through your being, is another.
• Man can alter his life by altering his thinking.
• Most people never run far enough on their first wind to find out they've got a second.
• No matter how full a reservoir of maxims one may possess, and no matter how good one's sentiments may be, if one has not taken advantage of every concrete opportunity to act, one's character may remain entirely unaffected for the better.
• Nothing is so fatiguing as the eternal hanging on of an uncompleted task.
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• Objective evidence and certitude are doubtless very fine ideals to play with, but where on this moonlit and dream-visited planet are they found?
• One hearty laugh together will bring enemies into a closer communion of heart than hours spent on both sides in inward wrestling with the mental demon of uncharitable feeling.
• Our errors are surely not such awfully solemn things. In a world where we are so certain to incur them in spite of all our caution, a certain lightness of heart seems healthier than this excessive nervousness on their behalf.
• Our esteem for facts has not neutralized in us all religiousness. It is itself almost religious. Our scientific temper is devout.
• Our faith is faith in someone else's faith, and in the greatest matters this is most the case.
• Our normal waking consciousness, rational consciousness as we call it, is but one special type of consciousness, whilst all about it, parted from it by the filmiest of screens, there lie potential forms of consciousness entirely different.
• Spiritual energy flows in and produces effects in the phenomenal world.
• Success or failure depends more upon attitude than upon capacity successful men act as though they have accomplished or are enjoying something. Soon it becomes a reality. Act, look, feel successful, conduct yourself accordingly, and you will be amazed at the positive results.
• The art of being wise is the art of knowing what to overlook.
• The best argument I know for an immortal life is the existence of a man who deserves one.
• The community stagnates without the impulse of the individual. The impulse dies away without the sympathy of the community.
• The deepest principle in human nature is the craving to be appreciated.
• The essence of genius is to know what to overlook.
• The exclusive worship of the bitch-goddess Success is our national disease.
• The god whom science recognizes must be a God of universal laws exclusively, a God who does a wholesale, not a retail business. He cannot accommodate his processes to the convenience of individuals.
• The great use of life is to spend it for something that will outlast it.
• The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.
• The greatest enemy of any one of our truths may be the rest of our truths.
• The greatest use of a life is to spend it on something that will outlast it.
• The hell to be endured hereafter, of which theology tells, is no worse than the hell we make for ourselves in this world by habitually fashioned our characters in the wrong way.
• The ideas gained by men before they are twenty-five are practically the only ideas they shall have in their lives.
• The sovereign cure for worry is prayer.
• The sway of alcohol over mankind is unquestionably due to its power to stimulate the mystical faculties of human nature, usually crushed to earth by the cold facts and dry criticisms of the sober hour.
• The world we see that seems so insane is the result of a belief system that is not working. To perceive the world differently, we must be willing to change our belief system, let the past slip away, expand our sense of now, and dissolve the fear in our minds.
• There is but one cause of human failure. And that is man's lack of faith in his true Self.
• There is no more miserable human being than one in whom nothing is habitual but indecision, and for whom the lighting of every cigar, the drinking of every cup, the time of rising and going to bed every day, and the beginning of every bit of work, are subjects of express volitional deliberation.
• There is only one thing a philosopher can be relied upon to do, and that is to contradict other philosophers.
• This life is worth living, we can say, since it is what we make it.
• To change ones life: Start immediately. Do it flamboyantly.
• To spend life for something which outlasts it.
• To study the abnormal is the best way of understanding the normal.
• We are all ready to be savage in some cause. The difference between a good man and a bad one is the choice of the cause.
• We are doomed to cling to a life even while we find it unendurable.
• We can act as if there were a God; feel as if we were free; consider Nature as if she were full of special designs; lay plans as if we were to be immortal; and we find then that these words do make a genuine difference in our moral life.
• We don't laugh because we're happy - we're happy because we laugh.
• We have grown literally afraid to be poor. We despise anyone who elects to be poor in order to simplify and save his inner life. If he does not join the general scramble and pant with the money-making street, we deem him spiritless and lacking in ambition.
• We have to live today by what truth we can get today and be ready tomorrow to call it falsehood.
• We never fully grasp the import of any true statement until we have a clear notion of what the opposite untrue statement would be.
• When you have to make a choice and don't make it, that is in itself a choice.
  
• Whenever you're in conflict with someone, there is one factor that can make the difference between damaging your relationship and deepening it. That factor is attitude.
• Where quality is the thing sought after, the thing of supreme quality is cheap, whatever the price one has to pay for it.
• Why should we think upon things that are lovely? Because thinking determines life. It is a common habit to blame life upon the environment. Environment modifies life but does not govern life. The soul is stronger than its surroundings.
• Wisdom is learning what to overlook.