最小的行动，乘以百万次，就能改变世界。

The world is a place of the living, and the dead have no place in it. The dead are nothing. They are not even a memory.

Suffering is the fire that purifies the soul.

拓扑和量子力学之间的相互作用是一个丰富的研究领域，它以其深度和复杂性不断给我们带来惊喜。

Good design is as little design as possible.