过去总是紧张的，未来是完美的。

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。

Civilization as it is known today could not have evolved, nor can it survive, without an adequate food supply.

You are not defined by your past. You are prepared by your past.

我们必须倾听科学的声音，并果断采取行动以保护海洋生物多样性。