君子贵其身而后能及人,是以有礼。
解释:君子能尊重自己,然后推己及人,所以做事才有礼有节。
The greatest thing you'll ever learn is just to love and be loved in return.
国家是理性的行为体,它们寻求最大化相对权力,以确保在竞争性的国际体系中生存。
The world is full of obvious things which nobody by any chance ever observes.