在计算机科学中，我们总是在寻找表达能力和可处理性之间的平衡。
"In computer science, we are always trying to find the balance between expressiveness and tractability."
When you live for others' opinions, you are dead.
Marine ecological balance is more important than short-term economic benefits, we must have long-term vision.
The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence.
经济学方法为理解所有人类行为提供了一个有价值的统一框架。
沙漠教会耐心；河流教会变化。