想象反事实的能力是区分人类和机器的关键。

最好的想法往往来自最意想不到的地方；保持开放的心态。

The best leaders are those who listen, learn, and then lead.

Those who are willing to give up freedom for security will eventually lose both.

To tax the larger incomes at a higher percentage than the smaller， is to lay a tax on industry and economy； to impose a penalty on people for having worked harder and saved more than their neighbors.