A man who dares to waste one hour of time has not discovered the value of life.
一个敢于浪费一小时时间的人，尚未发现生命的价值。
无论多么艰难，永远不要放弃你的梦想。
The deep, personal material of the latter half of your life is your children. You can write about your parents when they're gone, but your children are still going to be here, and you're going to want them to come and visit you in the nursing home.
The theory of economic development is the study of how the economic system generates the forces which incessantly transform it.
进步的艺术是在变化中保持秩序，在秩序中保持变化。