The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.

"The past is a shadow that follows us, no matter how fast we run."

The strongest is never strong enough to be always the master unless he transforms strength into right and obedience into duty.

幸福源自内心的平静。

Collaboration in science bridges gaps between what we know and what we can discover.