5 ideas
9283 | Our ancient beliefs can never be overthrown by subtle arguments [Euripides] |
6409 | The 'simple theory of types' distinguishes levels among properties [Ramsey, by Grayling] |
12733 | Because of the definitions of cause, effect and power, cause and effect have the same power [Leibniz] |
12734 | Every necessary proposition is demonstrable to someone who understands [Leibniz] |
3212 | Beliefs are maps by which we steer [Ramsey] |