Hunter S. Thompson

"I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me."

- Hunter S. Thompson, journalist and author

George Santayana

"Sanity is a madness put to good use."

- George Santayana, philosopher, poet, author

Havelock Ellis

"The place where optimism most flourishes is the lunatic asylum."

- Havelock Ellis, psychologist

Friedrich Nietzsche

"A casual stroll through the lunatic asylum shows that faith does not prove anything."

- Friedrich Nietzsche, scholar, philosopher and developmental critic

Seneca

"There is no great genius without some touch of madness."

- Seneca, ancient Roman orator and writer

Friedrich Nietzsche

"Madness is rare in individuals - but in groups, political parties, nations, and eras it's the rule."

- Friedrich Nietzsche, scholar, philosopher and developmental critic

Bruce Feirstein

"The distance between insanity and genius is measured only by success."

- Bruce Feirstein, screenwriter and author