"In observational studies, we often have to rely on assumptions that are not directly testable."
在观察性研究中，我们常常不得不依赖于无法直接检验的假设。
History is not just about the past; it's about how the past shapes the future.
最小元件成本的复杂性每年大约增加一倍。
The most important thing is to keep the most important thing the most important thing.
预测未来的最好方式就是创造未来。
我不让仇恨吞噬我，我让它激励我。