If you can't say it clearly, you don't understand it yourself

Berkeley had a liberal element in the student body who tended to be quite active. I think that's in general a feature of intellectually active places.

Well, what does "good" mean anyway? As Wittgenstein suggested, "good," like "game," has a family of meanings. Prominent among them is this one: "meets the criteria or standards of assessment or evaluation."

The problem posed by indirect speech acts is the problem of how it is possible for the speaker to say one thing and mean that but also to mean something else.

If you can't say it clearly, you don't understand it yourself

You can't *discover* that the brain is a digital computer. You can only *interpret* the brain as a digital computer.

In many cases it is a matter for decision and not a simple matter of fact whether x understands y; and so on.