enough to know everything.

(He looks hopefully from one to another, but though they try to
grasp this, his brilliance baffles them.)

AGATHA (his secret admirer). Young enough?

ERNEST (encouragingly). Don't you see? I'm not young enough to know
everything.

AGATHA. I'm sure it's awfully clever, but it's so puzzling.

(Here CRICHTON ushers in an athletic, pleasant-faced young
clergyman, MR. TREHERNE, who greets the company.)

CATHERINE. Ernest, say it to Mr. Treherne.

ERNEST. Look here, Treherne, I'm not young enough to know
everything.

TREHERNE. How do you mean, Ernest?

ERNEST. (a little nettled). I mean what I say.

LADY MARY. Say it again; say it more slowly.

ERNEST. I'm--not--young--enough--to--know--everything.

TREHERNE. I see. What you really mean, my boy, is that you are not
old enough to know everything.