"电影的魅力在于阴影。"
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
我们的大脑天生倾向于看到光明的一面，即使证据表明并非如此。
Economic theory provides the tools, but real-world testing refines them.