Mathematics is not a spectator sport.
领导力就是今天做出艰难的决定，明天让所有人受益。
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.
To write is to give voice to the voiceless.
Profitability and sustainability must go hand in hand—there is no other way forward.
Risk more than others think is safe. Dream more than others think is practical.