对抗传染病的斗争是一项超越国界的全球性努力。

Teaching is not about imparting everything, but about guiding at the right moment.

The most important thing in a computer system is the file system.

在野外生存的最佳方法是保持冷静并清晰地思考。

历史是一场我试图醒来的噩梦。