Poetry is not a turning loose of emotion, but an escape from emotion; it is not the expression of personality, but an escape from personality. But, of course, only those who have personality and emotions know what it means to want to escape from these things.
Let me arrest thy thoughts, wonder with me,
Why ploughing, building, ruling and the rest,
Or most of those arts, whence our lives are blessed,
By cursed Cain's race invented be,
And blessed Seth vexed us with astronomy.
Enjoyment is an art and a skill for which we have little talent or energy... your entire education has has deprived you of this capacity because it was preparing you for the future, instead of showing you how to be alive now.
Art is not, as the metaphysicians say, the manifestation of some mysterious idea of beauty or God; it is not, as the aesthetical physiologists say, a game in which man lets off his excess of stored-up energy; it is not the expression of man's emotions by external signs; it is not the production of pleasing objects; and, above all, it is not pleasure; but it is a means of union among men, joining them together in the same feelings, and indispensable for the life and progress toward well-being of individuals and of humanity.
Good art means the ability of any one man to pin down in some permanent and intelligible medium a sort of idea of what he sees in Nature that nobody else sees. In other words, to make the other fellow grasp, through skilled selective care in interpretative reproduction or symbolism, some inkling of what only the artist himself could possibly see in the actual objective scene itself.
The only way of expressing emotion in the form of art is by finding an "objective correlative"; in other words, a set of objects, a situation, a chain of events which shall be the formula for that particular emotion; such that when the external facts, which must terminate in sensory experience, are given, the emotion is immediately evoked.
The general who wins a battle makes many calculations in his temple ere the battle is fought. The general who loses a battle makes but few calculations beforehand. Thus do many calculations lead to victory, and few calculations to defeat: how much more no calculation at all! It is by attention to this point that I can foresee who is likely to win or lose.