A good abstraction is one that emphasizes the essential and suppresses the irrelevant.

投资者和投机者之间最现实的区别在于他们对股市波动的态度。

You are stronger than you think, braver than you believe, and smarter than you know.

I am among those who think that science has great beauty.

"Time is the most democratic of all things; it is given equally to everyone, yet everyone uses it differently."

True progress measures both economic growth and ecosystem health.