Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.

"The only thing necessary for the triumph of evil is for good men to do nothing."

可持续农业不是一种趋势，而是我们星球唯一的前进道路。

处于逆境中，就好比周身都扎着针、敷着药；冥冥中却能磨炼人的意志、培养高尚的品行。处于顺境中，就好比被各种各样的兵器包围；冥冥中掏空了身体，消磨了向上进取的意志。

We should always follow the path of appearances and withhold judgment.