The notion of truth is not definable in any formal system that is strong enough to include arithmetic.
To feed the world, we must first understand the soil beneath our feet.
译文:一个人要是喜欢在众人面前争个长短,那么他必定会在背后说人的是非。赏析:喜欢争长短的人,大多自私自利,刻薄寡恩,一旦别人伤害他的利益时,他就会说三道四。