To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things, every single day.

最好的领导者是那些赋予团队自主权并推动变革的人。

The only way to discover the limits of the possible is to go beyond them into the impossible.

I think the best acting is instinctive. It's not intellectual, it's not mechanical, it's instinctive.

作家必须成为他的阶级、国家、宗教的叛徒——除了他的良心。

译文：奢侈无度可以让家业衰败，过于吝啬也可以让家业衰败；过于愚笨可以坏事，精明过于也可以坏事。赏析：挥霍无度，浪费钱财，过分追求物质享受，再多的家产也可以被败光，而过分吝啬，不懂得散财，不懂得让金钱为我所用，再多的家产都无法产生价值。只会赚钱，不会用钱，金钱将失去意义；只会用钱，不会赚钱，金钱无处可来。人如果愚钝不开，就不会明白世间的道理，做事毫无章法，自然难以成事；而人过于精明，不懂得收敛锋芒，处处要占上风，处处算计别人，做事也难以成功。

数学是一门活生生的学科，不断演变和发展。