The present state of the system of nature is evidently a resultant 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.

幸福晚年的秘诀在于要有好的记性和坏的记性。

坚持和耐心总会带来成果。

The goal of software engineering is to control complexity, not to create it.

"Mathematics is not a spectator sport."