计算机科学中的挑战不仅仅是解决问题，而是理解为什么它们首先是问题。
The challenge in computer science is not just to solve problems, but to understand why they are problems in the first place.
Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:
心灵是一个不断进化的过程。
我喜欢压力。我喜欢那些重要时刻。
The greatest poetry is born of the greatest suffering.