The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when to be obeyed.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

The concept of inflation suggests that the universe underwent a period of extremely rapid expansion shortly after the Big Bang.

你今天感受到的痛苦将成为你明天感受到的力量。

最安全的加密是你没有使用的加密。