The best way to ensure peace is to maintain a balance of power among the great powers.

You are never too old to set another goal or to dream a new dream.

可持续性不是一种选择，而是我们对后代的责任。

The only true voyage of discovery would be not to visit strange lands but to possess other eyes.

最成功的公司不只是销售产品，他们还销售体验和情感。