“Madness does not come by breaking out, but by giving in; by settling down in some dirty, little, self-repeating circle of ideas; by being tamed.”

“A puddle repeats infinity, and is full of light; nevertheless, if analyzed objectively, a puddle is a piece of dirty water spread very thin on mud.”

“Pride is the downward drag of all things into an easy solemnity. One "settles down" into a sort of selfish seriousness; but one has to rise to a gay self-forgetfulness... Seriousness is not a virtue. It would be a heresy, but a much more sensible heresy, to say that seriousness is a vice. It is really a natural trend or lapse into taking one's self gravely, because it is the easiest thing to do... For solemnity flows out of men naturally; but laughter is a leap. It is easy to be heavy: hard to be light.”

“He may be mad, but there's method in his madness. There nearly always is method in madness. It's what drives men mad, being methodical.”

“For the only courage worth calling courage must necessarily mean that the soul passes a breaking point and does not break.”

“The modern world is filled with men who hold dogmas so strongly that they do not even know that they are dogmas. It may be said even that the modern world, as a corporate body, holds certain dogmas so strongly that it does not know that they are dogmas. It may be thought 'dogmatic,' for instance, in some circles accounted progressive, to assume the perfection or improvement of man in another world. But it is not thought "dogmatic" to assume the perfection or improvement of man in this world; though that idea of progress is quite as unproved as the idea of immortality, and from a rationalistic point of view quite as improbable. Progress happens to be one of our dogmas, and a dogma means a thing which is not thought dogmatic.”

“Imagination does not breed insanity. Exactly what does breed insanity is reason. Poets do not go mad; but chess-players do. Mathematicians go mad, and cashiers; but creative artists very seldom. I am not, as will be seen, in any sense attacking logic: I only say that this danger does lie in logic, not in imagination.”