Energy is defined as a “property of objects.” In other words, it is a concept, such as patriotism, velocity, or honesty. You can’t grab a handful of a concept and put it in your pocket. So there you have it: To exist, you must have mass. Mass is equivalent to energy. Energy is nothing but a concept. Therefore, you are nothing but a concept, probably in a computer program designed by someone else. Atheists say God doesn’t exist. I say atheists don’t exist.
The Dilbert Blog: Proof You Don’t Exist