He wore the expression of a man who has heard all this before, and is not enjoying it any better the second time. - James Blish

We cannot count upon the secret being kept. It’s a fact of nature, and as somebody or other remarked long ago, Nature is a blabbermouth; ask the right question, and you’ll always get the answer.

The first thing a psychologist learns is to keep her mouth shut around laymen.

You may as well go, Maurice. You can’t undo what you’ve done in any case, nor can I expect to talk to you out of whatever it is you’re planning. But I will tell you this: Your sanity is dubious.