William James

“A great many people think they are thinking when they are merely rearranging their prejudices.”
“Most people live, whether physically, intellectually or morally, in a very restricted circle of their potential being.”
“The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.”
“The great use of a life is to spend it for something that will outlast it.”
“Compared to what we ought to be, we are half awake.”
“Truth happens to an idea.”
“There is no more miserable human being than one in whom nothing is habitual but indecision.”
“My experience is what I agree to attend to.”
“The art of being wise is the art of knowing what to overlook.”
“Act as if what you do makes a difference. It does.”