即使有天下最容易生长的植物,晒它一天,又凉它十天,没有能够长大的。比喻做事一日勤,十日怠,没有恒心,是不会成功的。
We cannot change the past, but we can change our view of it.
真相总是复杂的,而且很少是纯粹的。
The very definition of the real becomes: that of which it is possible to give an equivalent reproduction.
PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。