There is no despair so absolute as that which comes with the first moments of our first great sorrow, when we have not yet known what it is to have suffered and be healed, to have despaired and have recovered.

Your self-worth is determined by you. You don't have to depend on someone telling you who you are.

PAC学习框架提供了一种正式的方法来分析学习算法的效率和有效性。

问题不在于我们是否是意识形态的囚徒，而在于我们是否意识到意识形态在构建我们对现实的看法中如何发挥作用。