Nature hath made men so equal in the faculties of body and mind， as that though there be found one man sometimes manifestly stronger in body or of quicker mind than another， yet when all is reckoned together the difference between man and man is not so considerable as that one man can thereupon claim to himself any benefit to which another may not pretend as well as he.

Men and women differ in their reproductive strategies because they have faced different adaptive problems throughout evolutionary history.

抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。