所有人都存在危险。自由政府的唯一准则应该是不要信任任何拥有权力的人，以免危及公共自由。
There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.
The market is always changing, and so should your strategies.
我写作是为了给无声者以声音。
Psychology's task is to explain how mind serves life.
一个简单的想法，要认真对待。
Consumer preferences are shifting rapidly; adaptability is the new competitive advantage.