教育是老年人的最佳粮食。

我只希望在自己衰老前退休，否则我只会成为累赘。

The most sustainable building is one that people love and want to preserve.

The true artist creates his own world.

Technology will lead us to new frontiers in energy exploration.

把爱放大

优秀的数学家不是知道所有答案的人，而是能提出正确问题的人。