Exactly. See, there's that big head working.

没错 你的大脑袋还是有用的嘛。

Listen, I know how your head works. I'm gonna prove it to you.

听着，我知道你脑袋如何工作 我要证明给你看。

Once you're doing work with machinery, indoors, doing double-entry bookkeeping and all that kind of head work, alcohol is the wrong drug, and caffeine is the right drug.

只要从事操作机器的，在室内的，做复式记账工作的，以及所有脑力劳动，那酒精就是坏事的，咖啡因才是正确的选择。