7 ideas
| 22363 | You have only begun to do real science when you can express it in numbers [Kelvin] |
| 23569 | The only just cause for a war is a wrong received [Vitoria] |
| 23601 | Leaders can only attack foreigners who have done wrong (as with their own subjects) [Vitoria] |
| 23566 | Princes should not justify a war to their subjects, and doing so would undermine the state [Vitoria] |
| 23576 | Sacking a city is lawful if it motivates the attacking troops [Vitoria] |
| 19399 | Prime matter is nothing when it is at rest [Leibniz] |
| 20644 | Energy has progressed from a mere formula, to a principle pervading all nature [Kelvin] |