Quote by Romona

...You know what I mean?

— Andrew McMahon

You only know what you know.

— Loretta Swit

Know what you are talking about.

— Pope John Paul II

What I mean is, I don't know what I mean...

— Karl Pilkington

I know what I do not know.

— Socrates

Do you know because I tell you so, or do you know, do you know.

— Gertrude Stein

You see what you know!

— Frank Stella

You know that right?

— Trace Adkins

I don't exactly know what I mean by that, but I mean it.

— J. D. Salinger

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

— Anonymous

You know more than you know.

— Jonah Lehrer

You mean more to me than you will ever know.

— Superman