Proverb

"The art is not in making money, but in keeping it"

Freakonomics (sourced from a podcast series)

"The day before an idea is a breakthrough, the idea is considered crazy"

Carl Jung

"Who looks outside dreams, who looks inside awakens."

Henry David Thoreau

"Go confidently in the direction of your dreams"

Samuel Beckett 1906-1989

"Ever tried. Ever failed. No matter. Try again. Fail again. Fail better."