Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

每一种化合物都必须有确定的组成，这可以用其元素的符号来表示。

Collaboration is the key to solving the big challenges in food production today.

科学家与公众之间的对话对于负责任的创新至关重要。