Nothing is more precious than independence and freedom.

樊迟问仁，孔子说：“对人慈爱。”问智，孔子说：“对人了解。”樊迟不理解。孔子说：“以正压邪，能使邪者正。”

"In computational learning theory, the challenge is not just to learn, but to understand how learning is possible."

我不必完美，我只需要做我自己。

我并非天生失明，而是在12岁时失去视力，但我从未觉得自己是个受害者。

我们不是从祖先那里继承了地球；我们是从子孙那里借来的。

The only limit to our realization of tomorrow is our doubts of today.