Rigor in proof is what separates mathematics from all other sciences.

If I could, I would stop the passage of time.But hour follows on hour, minute on minute, each second robbing me of a morsel of myself for the nothing of tomorrow.I shall never experience this moment again.

领导力在于激励他人在曾经看到障碍的地方看到可能性。

思想掠过我的心上，如一群野鹘飞过天空。我听见它们鼓翼之声了。