Q I have text in an e-mail message that was typed in capital letters, and I’d like to convert it to standard uppercase and lowercase letters. Is there a way to do this, or am I stuck retyping?

Well, now for another mind-melter ― there’s a very good reason why we call uppercase and lowercase letters what we do, and it’s because of the original printing presses.

Aside from the fact that there are uppercase and lowercase letters in the alphabet, there are other cases that you didn't know about,' Chen said of the intriguing nature of language.