No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

Three passions， simple but overwhelmingly strong， have governed my life: the longing for love， the search for knowledge， and unbearable pity for the suffering of mankind.

"The truth is rarely pure and never simple."

The world is not what it seems to be; it is what we believe it to be.

我不是身体，我是思想。

真正的领导力意味着做出平衡短期收益和长期愿景的艰难决定。