3 ideas
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
9626 | A structure is an abstraction, focussing on relationships, and ignoring other features [Shapiro] |
16697 | Time is independent of motion, because God could stop everything for a short or long time [Crathorn, by Pasnau] |