每个家庭都有自己的秘密,但在某些国家,这些秘密更大、更危险。
信任是商业中最昂贵的东西。
The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others.
The essence of mathematics is not just in solving problems but in asking the right questions.
一本伟大的书不是被阅读的书,而是阅读你的书,揭示你灵魂的深处。