If your mind is clear, your code will be clear.
A minor nit - If your mind is clear, your code can be clear. I'm pretty sure Damian Conway's mind is very clear, but I'll be damned if his code is! :-)
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.
