9 ideas
| 3653 | My Meditations are the complete foundation of my physics [Descartes] |
| 4736 | Truth is such a transcendentally clear notion that it cannot be further defined [Descartes] |
| 5845 | Niceratus learnt the whole of Homer by heart, as a guide to goodness [Xenophon] |
| 20180 | A happy and joyous life must largely be a quiet life [Russell] |
| 20177 | Boredom always involves not being fully occupied [Russell] |
| 20179 | Happiness involves enduring boredom, and the young should be taught this [Russell] |
| 20176 | Boredom is an increasingly strong motivating power [Russell] |
| 20178 | Life is now more interesting, but boredom is more frightening [Russell] |
| 3652 | I can't prove the soul is indestructible, only that it is separate from the mortal body [Descartes] |