We don't receive wisdom; we must discover it for ourselves after a journey that no one can take for us or spare us.
人类的自由在其选择中被限制。
When a professor insists computer science is X but not Y, have compassion for his graduate students.
Don't cry to quit, cry to keep going.
没有艺术；没有文学；没有社会；最糟糕的是，持续不断的恐惧和暴力死亡的威胁；人的生活孤独、贫困、肮脏、野蛮而短暂。
In mining, efficiency and environmental care must go hand in hand.
The secret to success is to love what you do.