最好的采石场不会留下伤痕，只有负责任的转变。
The best quarries leave no scars, only responsible transitions.
The battle to feed all of humanity is over. The battle to feed all of humanity in the future has just begun.
我花得最好的一分钟是投资在人们身上的那一分钟。
The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.
数学家是能在定理间找到类比的人；更好的数学家能在理论间看到类比；而最优秀的数学家能注意到类比之间的类比。
"In the end, it is not the years in your life that count, but the life in your years."
"History is not just what happened, but what people thought and felt about it."
Let us try to teach generosity and altruism, because we are born selfish.