小人办事，处理的原则是私利，合于私利的就看作利，违背私利的就看作害；君子办事，衡量的标准是道义，合于道义的就看作利，违反道义的就看作害。

世界是一本书，不旅行的人只读了一页。

My greatest happiness is doing what I love.

最大的悲剧不是死亡，而是遗忘母语。

The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to risk war with one another.

最大的礼物是生命本身。