The computing scientist's main challenge is not to get confused by the complexities of his own making.

有福之人遭到不幸只是损失钱财，无福之人遭遇不幸则会伤及性命。

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.

理论上，理论和实践之间没有区别。但实际上，是有区别的。

"Writing is a way of thinking, a way of understanding the world."