4 ideas
| 23304 | The ancient Memorists said virtually all types of thinking could be done simply by memory [Sorabji] |
| 23303 | Stoics say true memory needs reflection and assent, but animals only have perceptual recognition [Sorabji] |
| 7903 | The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna] |
| 2116 | The concept of an existing thing must contain more than the concept of a non-existing thing [Leibniz] |