All models are wrong, but some are useful.
所有模型都是错误的，但有些是有用的。
God could not be everywhere, and therefore he made mothers.
"The future is a concept—it exists only in our minds."
There are things that happen and leave no discernible trace, are not spoken or written of, though it would be very wrong to say that subsequent events go on indifferently, all the same, as though such things had never been.
在数学中，提出问题的艺术必须比解决问题更有价值。
学习任何事情的最好方法就是去做。
有些人希望事情发生，有些人希望事情会发生，而其他人则让它发生。
那些被看到跳舞的人被那些听不到音乐的人认为是疯了。
Vote for the man who promises least; he'll be the least disappointing.
我们每天可支配的时间是有弹性的；我们感受到的激情会扩展它，我们激发的激情会收缩它；而习惯会填补剩下的部分。