Al E was trying to be a misunderstood crotchety old man, unfortunately, he makes too much sense. He was contrasting emotion and physics, like Henrik said.

Then again he may have been attempting to show the error of linking Cupid's arrows to William Tell shooting an apple to the apple that fell on Isaac Newton. It's correlation, not causation.

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"What you think you thought you saw you did not see." Agent J, MiB - Manhatten Bureau