4 ideas
18946 | Unreflectively, we all assume there are nonexistents, and we can refer to them [Reimer] |
21681 | Given all true atomic propositions, in theory every other truth can thereby be deduced [Russell] |
22363 | You have only begun to do real science when you can express it in numbers [Kelvin] |
20644 | Energy has progressed from a mere formula, to a principle pervading all nature [Kelvin] |