爱不过是使用积极强化的另一个名字？或者反过来。
To exist is to be in dialogue—with others, with time, with the unknown.
孔子说：“不懂得客观规律，就不能做君子；不懂得道德规范，就无法建功立业；不懂得分辨言论，就不能了解人。”
心之外没有事物，心之外没有事情，心之外没有道理。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.