Optimism is the madness of insisting that all is well when we are miserable.
Madness is to think of too many things in succession too fast, or of one thing too exclusively.
Superstition is to religion what astrology is to astronomy the mad daughter of a wise mother. These daughters have too long dominated the earth.
The man visited by ecstasies and visions, who takes dreams for realities is an enthusiast; the man who supports his madness with murder is a fanatic.
What is madness? To have erroneous perceptions and to reason correctly from them.
If you wish to obtain a great name or to found an establishment, be completely mad; but be sure that your madness corresponds with the turn and temper of your age.
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