Sometimes I just feel like quitting, but then I think about all the people I’d be letting down.

获取智慧是一种道德责任。这不是你为了生活的进步而做的事情......你不会因为你已经知道了什么而在生活中走得很远。离开这里之后，你要靠自己学到的东西来提升自己。

The main task in life is simply this: to identify and separate from the things that are not ourselves, so that we can become ourselves.

The concept of computational efficiency is central to the design of learning algorithms.

The past is a river, and we are all carried by its currents.