Related:

• Do you know what the square root of 69 is? 8 something.
• Maj. Burns: What kind of idiot do you think I am? Cpl.
  O'Reily: You'd know that better than me, sir. -- M*A*S*H, television program...
• What I know at sixty, I knew as well at twenty. Forty years of a long, a superfluous, labor of verification.
  -- E.M. Ciora...
• Never mind the facts - I know what I know.
• Asking me, asking me: do you know what love is? Sure, I know. A boy loves his dog.
• If religious books are not widely circulated among the masses in this country, I do not know what is going to become of us as a nation.
  If truth be not diffused, error will be; If God and His Word are not know and received, the devil and his works will gain the ascendancy...
• while we all know that unmastered complexity is at the root of the misery
  we do not know what degree of simplicity can be obtained, nor to what extent the intrinsic complexity of the whole design has to show up in the interfaces....
• Marge: All our money's tied up in this woman. If she fails, we're broke.
  If she succeeds, I have no husband. I don't know what to root for....
• There's been no top authority saying what marijuana does to you.
  I really don't know that much about it. I tried it once but it didn't do anything to me....