The key to credible causal inference is not just the method, but how well the method fits the question at hand.

我在想，革命是不朽的。

If you don’t take risks, you’ll never know what you’re capable of.

心理活动是有机体与其环境的对话。

我认为最重要的是不要害怕失败。

I'm not afraid to be vulnerable.

The telling of beautiful untrue things, is the proper aim of Art.

As to the gods, I have no means of knowing either that they exist or that they do not exist. For many are the obstacles that impede knowledge, both the obscurity of the question and the shortness of human life.