For the truths which the intellect apprehends directly in the world of full and unimpeded light have something less profound, less necessary than those which life communicates to us against our will in an impression which is material because it enters us through the senses but yet has a spiritual meaning which it is possible for us to extract.
For instinct dictates our duty and the intellect supplies us with pretexts for evading it. But excuses have no place in art and intentions count for nothing: at every moment the artist has to listen to his instinct, and it is this that makes art the most real of all things, the most austere school of life, the true last judgment.
The impression is for the writer what experiment is for the scientist, with the difference that in the scientist the work of the intelligence precedes the experiment and in the writer it comes after the impression. What we have not had to decipher, to elucidate by our own efforts, what was clear before we looked at it, is not ours. From ourselves comes only that which we drag forth from the obscurity which lies within us, that which to others is unknown.