These machines have no common sense; they have not yet learned to "think," and they do exactly as they are told, no more and no less. This fact is the hardest concept to grasp when one first tries to use a computer.

A mathematical formula should never be "owned" by anybody! Mathematics belong to God.

A list is only as strong as its weakest link.

The enjoyment of one's tools is an essential ingredient of successful work.

The most important thing in the kitchen is the waste paper basket and it needs to be centrally located.

Programs are meant to be read by humans and only incidentally for computers to execute.

I define UNIX as 30 definitions of regular expressions living under one roof.