The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

The desire for recognition, the thymotic part of the soul, is the most fundamentally human part of the human personality.

现代密码学的挑战不仅是确保通信安全，而且要以既高效又可扩展的方式实现。

Success in business is all about people, people, people. Whatever industry a company is in, its employees are its biggest competitive advantage.

The art of progress is to preserve order amid change and to preserve change amid order.