Individuals do not act so as to maximize the social welfare.
个人的行为并非以社会福利最大化为目标。
The best time to work on your marriage is before you have one.
出自汉·桓宽《盐铁论·险固》。这句话以“地利”与“人和”、“武力”与“文德”的对比,阐明了实行仁政对于治国安邦的重要性。
Nothing in biology makes sense except in light of evolution