Man should possess an infinite appetite for life. It should be self-evident to him, all the time, that life is superb, glorious, endlessly rich, infinitely desirable. At present, because he is in a midway position between the brute and the truly human, he is always getting bored, depressed, weary of life. He has become so top-heavy with civilisation that he cannot contact the springs of pure vitality. Control of the prefrontal cortex will change all of this. He will cease to cast nostalgic glances towards the womb, for he will realise that death is no escape. Man is a creature of life and the daylight; his destiny lies in total objectivity.

p. 317-318 - The Philosopher's Stone (1969)