What is vagueness ?

A comprehensible proof is not necessarily the shortest one, but a proof of small width. It is a nice naive concept which perhaps can be made into a rigorous theory.

Alexandre Borovik

Serious artwork

Because it studies such abstract patterns, mathematics often allows us to see similarities between two phenomena that at first appear quite different.

She aims to instill a sense of seriousness with her artwork, because he has no measurable sense of humor.

Ambiguous picture

What does 'what' mean?

"Pictures that are used to show what a picture is"

W.J.T. Mitchell, Picture Theory