A small boy was talking with his mother and said, "How old do I have to be to stay up late on a school night?"

His mother replied, "About eighteen."

"Oh good!" the boy said. "I'm old enough now!"

"How do you figure that? Mom said. "Last time I checked, you were only eleven."

"Well," the boy eplained. "The preacher was preaching Sunday, and he said you're as old as you feel. Today I feel eighteen!"