Bertrand Russell's 10 Commandments

I like these a lot.

I would say that #1 is the most important.

#5 is too strong, as it implies assigning everyone else an equal weight of zero. No one has absolute authority, but some people are more worth listening to on particular topics than others.

I would amend #8 to note that one can, in many contexts, dissent without being a jerk, and that dissenting without being a jerk is sometimes more effective.