古之立言者，皆有所为而发也。
古代著书立说的人，都是有所为而发的。
The spread of liberal democracy and the integration of the world economy have created a situation in which the only legitimate form of government is one that is based on popular sovereignty and respects basic human rights.
领导力意味着多听少说，并带着目标行动。
The only limits in life are the ones you set for yourself.
生存下来的不是最强壮的物种，也不是最聪明的物种，而是对变化反应最迅速的物种。