深度学习是一种超能力。有了它，你可以让计算机看、听和学习。
Deep learning is a superpower. With it, you can make a computer see, hear, and learn.
最好的投资是投资自己。你学得越多，赚得越多。
Knowledge is represented in the mind as symbolic structures.
The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.
阅读的习惯是唯一没有掺杂任何杂质的享受；当所有其他乐趣消失时，它依然存在。