Every drop of oil saved through innovation is a step toward a cleaner future.

We must balance economic growth with environmental stewardship.

A good novel tells us the truth about its protagonist; but a bad novel tells us the truth about its author.

It takes a strong man to save himself, and a great man to save another.

"We live in a world where the past is always present, and the future is always uncertain."

这很简单，你只需拿些东西，对它做点什么，然后再做点别的。