One of the first things taught in introductory statistics textbooks is that correlation is not causation. It is also one of the first things forgotten.

心理学必须是纯粹实验性和分析性的。

化学的艺术在于分离、提纯和结合物质的能力。

A man without a homeland is like a nightingale without a song.

改变始于意识，但需要行动才能带来真正的改变。