| description | philosopher |
| quite a biologist, taxonomer as well | |
| the idea that people are a 'tabula rasa' | |
| proclaimed unifier empirical and rational philosophy | |
| horribly difficult books with five types of 'being' | |
| constantly asking questions, annoying people from athens | |
| you can never step into the same river twice, invented atoms | |
| made a formal distinction between what we may think about, and what we may not | |
| wrote about how strong men have been replaced by sneaky clerics | |
| the famous cave story | |
| doubted everything, except own existence | |