A cell is a way for a gene to create more copies
A chicken is a way for an egg to create more copies
A human is a way for an idea to create more copies
A culture is a way for a set of ideas to create more copies
P.S. This postscript grants you permission to post a copy of this brief article anywhere you want. You can even change bits of it and then claim to be the original author. Just don't expect it to stop there.