Hesiod, an ancient Greek poet, said, "Observe due measure, for right timing is in all things the most important factor."
Henry Morgan, a 17th-century Welsh pirate who along the Spanish Main became a multimillionaire in today's dollars, said, "A kleptomaniac is a person who helps himself because he can't help himself."
Paul Graham, an English computer programmer and venture capitalist, said, "If you imagine someone with 100 percent determination and 100 percent intelligence, you can discard a lot of intelligence before they stop succeeding. But if you start discarding determination, you very quickly get an ineffectual and perpetual grad student."
Agnes de Mille, a former dancer and choreographer, said, "Living is a form of not being sure, not knowing what next or how. ... We guess. We may be wrong, but we take leap after leap in the dark."