The hours of folly are measured by the clock, but of wisdom: no clock can measure.
Friendship is a matter of time investment.
每一个作用力总是有一个相等的反作用力与之对抗。
To love is to risk, but it is a risk worth taking.
译文:种植橘柚,吃起来是甜的,闻起来是香的;种植枳棘,长大了却会刺人。所以君子要谨慎地选择所要培养的人才。