One must not lose desires. They are mighty stimulants to creativeness, to love, and to long life.

Pride relates more to our opinion of ourselves, vanity to what we would have others think of us.

The success of liberal democracy depends on the ability of its institutions to adapt to changing circumstances.

每位科学家都有责任考虑他们工作的更广泛影响。

世界是一种我们已忘记如何言说的语言。