The past is always tense, the future perfect.

Never stop learning, because the world never stops changing.

Trees are the earth's endless effort to speak to the listening heaven.

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.

I am a cage, in search of a bird.

The writer’s duty is to speak for those who cannot.

The world needs science, and science needs the world.