Democracy... while it lasts is more bloody than either aristocracy or monarchy. Remember, democracy never lasts long. It soon wastes, exhausts, and murders itself. There is never a democracy that did not commit suicide.

"Every book has a soul. The soul of the person who wrote it and of those who read it and dream about it."

In one of the stars I shall be living。 In one of them I shall be laughing。 And so it will be as if all the stars were laughing， when you look at the sky at night… You – only you – will have stars that can laugh.

The beauty of physics lies in its ability to explain the complex with simple principles.

穷人面临的约束往往是政策制定者看不到的。