Tyranny will fall, freedom will endure.

大自然为我们提供了研究生物学的惊人工具；我们只需要知道去哪里寻找。

The weight of guilt is measured not in years, but in sleepless nights.

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

Love is not a feeling, Mr. Stevens. Love is a decision.