系统有子系统，子系统有子系统，等等，这是无限的，这就是为什么我们总是从头开始。

In the realm of physics, we are not just observers but also creators of the reality we seek to understand.

Every breakthrough starts with a question, and every question is a step toward the unknown.

唯有理解，才能关心；唯有关心，才能帮助；唯有帮助，一切才能得救。