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We must balance the need for energy today with the imperative of protecting the planet for tomorrow.

The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.

火藥的不可控性教會我接受不完美。

The joy of science is in the journey, not just the destination.

Sometimes you have to go through the darkness to get to the light.

沉默有時比言語更有力量。

It is by no means an irrational fancy that， in a future existence， we shall look upon what we think our present existence， as a dream.

The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.