"I always try to stay positive, even when things are not going my way."

The battle of life is already half won by the young man who is brought personally in contact with high officials; and the great aim of every boy should be to do something beyond the sphere of his duties--something which attracts the attention of those who over him.

The essence of mathematics lies in its freedom.

正义不是目的地，而是一段旅程。

Psychology must bridge the gap between theory and practical life.