We need to be vigilant about the security of the Internet.
Stay hungry, stay foolish.
做数学就是探索一个无限的思想景观。
The best way to predict the future is to create it.
预测未来的最好方式就是创造未来。
学校必须是一个让孩子学会将眼前欲望服从于更大社会利益要求的地方。
Life is not a puzzle to be solved, but a story to be lived.
Ideas are like fish. If you want to catch little fish, you can stay in the shallow water. But if you want to catch the big fish, you've got to go deeper.