→ RFC 1925 – The Twelve Networking Truths

With sufficient thrust, pigs fly just fine. However, this is
not necessarily a good idea. It is hard to be sure where they
are going to land, and it could be dangerous sitting under them
as they fly overhead.

This and other truths like the following are found in the RFC 1925.

No matter how hard you push and no matter what the priority, you can’t increase the speed of light.

Source