Cultivate 12 people who love you， because they are worth more than 12 million people who like you.

There is a stubbornness about me that never can bear to be frightened at the will of others. My courage always rises at every attempt to intimidate me.

The true measure of a forest's worth isn't in board feet of timber, but in centuries of ecological balance.

解释：别人爱我，我也爱人；别人厌恶我，我也讨厌别人。

人生之要事在于确立伟大的目标与实现这目标的决心。

全球政治的未来将由民主和威权制度之间的竞争所塑造。

语言不仅仅是交流的工具；它是一种看待世界的方式。

效率是把事情做对，效果是做对的事情。