Made Quote by Stephen King

There are some people that if they don't know, you can't tell them.

— Louis Armstrong

Those that'll tell don't know, and those that know won't tell.

— Spike Lee

“If you don't know, I can't tell you.”

— Judy L. Mandel

“What do you know that you’re not telling me?" "I don’t know what you know, so I don’t know what you don’t know.”

— Magnus Flyte

There are some people who, if they don't already know, you can't tell 'em.

— Yogi Berra

You don't know what you don't know.

— Anonymous

There's nothing you can know that isn't known.

— John Lennon

It's not necessary to tell all you know.

— Harper Lee

If you don't know by now, you're never going to know.

— Jermaine Dupri

There is a long time in me between knowing and telling.

— Grace Paley

The best thing to know is what you don’t know,

— Christine Quinn

You can't know what you don't know. You can't know about things you have yet to discover.

— Jonathan Raymond