You think you KNOW when you learn, are more sure when you can write, even more when you can teach, but certain when you can program.

If a listener nods his head when you're explaining your program, wake him up.

A LISP programmer knows the value of everything, but the cost of nothing.

Often it is the means that justify the ends: goals advance technique and technique survives even when goal structures crumble.

A picture is worth 10K words - but only those to describe the picture. Hardly any sets of 10K words can be adequately described with pictures.

If you have a procedure with 10 parameters, you probably missed some.

There are two ways to write error-free programs; only the third one works.