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• I don't know music, but I know what I like. -- Beerbohm.
• I ain't no artist but, I know what I like.
• I would like to know What I was fencing in And what I was fencing out. -- Robert Fro
• You know, I'm no art critic, but I know what I hate.
  -- Burns to Marge on her portrait of him, "Brush with Greatne...
• If I didn't know now what I didn't know then...
• Never mind the facts - I know what I know.
• I try to know what I need to know. I make sure to know what I want to know. -- Nero Wolfe
• Half of what I know today will be obsolete in five years--I'd just like to know which half.
• I know what 's what, and have always taken care of the main chance.
  -- Miguel de Cervantes (1547-1616) -- Don Quixote, Part i, Book iii, Chap. ix...