I don't know, he admitted.
Well. She started pouring tea. To start things off, what do you think of the world?
I don't know anything.
The beginning of wisdom, as they say. When you're seventeen you know everything. When you're twenty-seven if you still know everything you're still seventeen.
You seem to have learned quite a lot over the years.
It is the privilege of old people to seem to know everything. But it's an act and a mask, like every other act and mask. Between ourselves, we old ones wink at each other and smile, saying, How do you like my mask, my act, my certainty? Isn't life a play? Don't I play it well?
They both laughed quietly.

p. 142 - Dandelion Wine (1957)