| "All arrogance will reap a harvest rich in tears." |
| Aeschylus |
| "We have no idea how the brain converts electrical and chemical signals into consciousness and thought patterns." |
| Ian Tattersall, American Museum of Natural History |
| "I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority." |
| E.B. White |
| "Computers enrich our lives in innumerable ways, but when we enlist them to replace life itself we become soft and lose our moral bearing." |
| Richard Strozzi Heckler, Rancho Strozzi Institute |
| "As with all things natural, reality often proves far more complex and intricate than people anticipate." |
| Jane C. Marks, ecologist |