生活的秘密在于给予。
The secret to living is giving.
The most successful states in the 21st century will be those that can combine the efficiency of markets with the fairness of democratic institutions.
缓慢的程度与记忆的强度成正比;速度的程度与遗忘的强度成正比。
A law of nature, lex naturalis, is a precept or general rule found out by reason, by which a man is forbidden to do that which is destructive of his life or takes away the means of preserving the same.