Every isolated passion is, in isolation, insane; sanity may be defined as a synthesis of insanities. Every dominant passion generates a dominant fear, the fear of its non-fulfilment. Every dominant fear generates a nightmare, sometimes in the form of an explicit and conscious fanaticism, sometimes in a paralysing timidity, sometimes in an unconscious or subconscious terror which finds expression only in dreams. The man who wishes to preserve sanity in a dangerous world should summon in his own mind a Parliament of fears, in which each in turn is voted absurd by all the others.
Source:Nightmares of Eminent Persons, 1945, Introduction.
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