Ancient times
Ancient times| before 1500| 1500-1600| 1600-1700| 1700-1800| 1800-1850| 1850-1900| 1900-1950| after 1950
| Author (number of quotes) | Description |
| A | |
| Aesop (3) | Ancient Greek fabulist |
| Anaxagoras (1) | Ancient Greek philosopher |
| Aristotle (8) | Ancient Greek philosopher and scientist |
| D | |
| Democritus (4) | Ancient Greek philosopher |
| E | |
| Epictetus (1) | Ancient Greek philosopher |
| H | |
| Hippocrates (1) | ancient Greek physician |
| S | |
| Sextus (4) | Ancient Greek philosopher |
| T | |
| Tzu, Lao (1) | Ancient Chinese philosopher, author of the Tao Te Ching |
| Tzu, Sun (1) | ancient Chinese military general and philosopher |