每一种化学结合完全且仅仅依赖于两种对立的力量，即正电和负电。

The secret of a good old age is simply an honorable pact with solitude.

如果你想成功，你必须准备好受苦。

Don’t fear failure—fear being in the same place next year as you are today.

技术将是减少我们碳足迹的重要推动者。