A zebra died and went to heaven and was waiting with St. Peter at the pearly gates.
The zebra asked Peter, "Am I a white zebra with black stripes or a black zebra with white stripes?" Peter replied, "Only God knows that answer."
So the zebra went into heaven and found God and asked him, "Am I a white zebra with black stripes or a black zebra with white stripes?"
God replied to him, "You are what you are." and then left him.
Confused the zebra went back to St. Peter and said "God told me, 'You are what you are' what does that mean?"
Peter replied "Oh its very clear, you are a white zebra with black stripes." "Why is that?" the zebra asked.
"Because if you were a black zebra with white stripes God would have told you 'You is what you is'"