The Doors of Perception is an autobiographical book written by Aldous Huxley. Published in 1954, …
Let me add, before we leave this subject, that there is no form of contemplation, even the most quietistic, which is without its ethical values. Half at least of all morality is negative and consists in keeping out of mischief.
— The Doors of Perception and Heaven and Hell by Aldous Huxley (Page 36)
Huxley, Aldous, ‘The Doors of Perception’, The Doors of Perception and Heaven and Hell, Penguin Books, 1960, p36