4 ideas
7822 | A neo-Stoic movement began in the late sixteenth century [Lipsius, by Grayling] |
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |
3448 | Do new ideas increase the weight of the brain? [Dance] |