【21】Aristotle and Greek Science

in the dim past 在遥远的过去

arduous work 努力的工作

Everyone thinks chiefly of his own,hardly ever of the public, interest.

be an example to the point

human nature, the human average, is nearer to the beast than to the god.
the wisdom of people, on average, is low.

a glimmer of possibilities 一点微小的可能性

人有自由，能自己努力，信仰个人，尊重私权，但是谁来管谁不来管，不是说你有自由就可以管别人的。类比，美国选总统。