沉默是被压迫者的语言。

Liberty cannot be preserved without a general knowledge among the people.

Our descendants will achieve things that will amaze us， yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.

I look back on the past, committed a felony little fool, I want to communicate with him and let him understand, but I can't do this, the boy would not see the, only my old trunk.

科学是分类学家的乐园。