4 ideas
13099 | Analysing right down to primitive concepts seems beyond our powers [Leibniz] |
5022 | We hold a proposition true if we are ready to follow it, and can't see any objections [Leibniz] |
18091 | Infinitesimals are ghosts of departed quantities [Berkeley] |
19399 | Prime matter is nothing when it is at rest [Leibniz] |