The past is a foreign country; they do things differently there.
The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.
病毒的复杂性提醒我们,关于生物学我们还有很多需要学习。
遇事要再三考虑,慎重行事,第一重要的是不要自欺欺人。