Adaptability is the key to survival in an ever-changing industry.

Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle. As with all matters of the heart, you'll know when you find it. And, like any great relationship, it just gets better and better as the years roll on. So keep looking until you find it. Don't settle.

Liberty cannot be preserved without a general knowledge among the people.

To be a poet is to have a soul so quick to discern that no shade of quality escapes it.

对天资在中等程度以上的人，可以和他谈论高深的学问；而对于中等以下天资的人，则不可以和他谈论高深的学问。

不要去寻找决定性时刻，因为它们永远不会到来。决定你的时刻已经发生，也会再次发生。

经济发展理论研究的是经济系统如何产生不断改变它的力量。