Bill Gates on nature

Your most unhappy customers are your greatest source of learning.

Success is a lousy teacher. It seduces smart people into thinking they can’t lose.

Today, you always know whether you are on the Internet or on your PC’s hard drive. Tomorrow, you will not care and may not even know.

Every day, man is making bigger and better fool-proof things, and every day, nature is making bigger and better fools. So far, I think nature is winning.

Albert Einstein1879–1955

Nature does nothing uselessly.

Aristotle384–322 BCPolitics, Book I, 1253a.8

Nature scarcely ever gives us the very best; for that we must have recourse to art.

Baltasar Gracián1601–1658

• Art