12 ideas
| 4187 | 'There is nothing without a reason why it should be rather than not be' (a generalisation of 'Why?') [Schopenhauer] |
| 13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
| 13795 | Properties only have identity in the context of their contraries [Elder] |
| 13798 | Maybe we should give up the statue [Elder] |
| 13797 | The loss of an essential property means the end of an existence [Elder] |
| 13794 | Essential properties by nature occur in clusters or packages [Elder] |
| 13796 | Essential properties are bound together, and would be lost together [Elder] |
| 4192 | All necessity arises from causation, which is conditioned; there is no absolute or unconditioned necessity [Schopenhauer] |
| 4190 | All understanding is an immediate apprehension of the causal relation [Schopenhauer] |
| 4191 | What we know in ourselves is not a knower but a will [Schopenhauer] |
| 21368 | The knot of the world is the use of 'I' to refer to both willing and knowing [Schopenhauer] |
| 4189 | Time may be defined as the possibility of mutually exclusive conditions of the same thing [Schopenhauer] |