The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.
相信你的直觉。你知道的比你认为的要多。
The chief enemy of creativity is 'good' sense.
Every problem in mathematics is an opportunity to learn something new.
健全的外交政策的首要条件是对自己价值观的清晰认识。