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.
Nature does not waste, and neither should we.
要理解行为，我们必须从生存和适应的背景中审视其目的。
The history of women’s labor force participation is not a steady march upward but a story of fits and starts.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.