We hold these truths to be self-evident: that all men are created equal.
The pursuit of knowledge is a journey that never ends.
注釋：恭敬、節(jié)儉、謙遜、守禮，這樣才能自我堅(jiān)守。深謀遠(yuǎn)慮，這樣才能避免困厄。親近仁德之士、結(jié)交正直之人，這樣才能在危難時(shí)得到幫助。
理解心智的功能就像繪制星圖——模式揭示目的。
The value of drones lies in solving industry pain points.