my take:

"Once you get the idea of ancestral living, don't spend too much time on the internet reading about it."

Personally, I think this is one of the toughest!

Don't consume anything that causes a negative physiological reaction.- Brett Potenger

It's a simple rule, but a very powerful one, and one that I think everyone needs to be reminded of from time to time :)

Mine is: "Never become dogmatic, we are all still learning."

I like this

Don't expend energy in ways that make your lower back ache (injury avoidance). - Brent Pottenger

I know way too many people that do harmful sports and are proud of how bad they feel...

Here is mine: "You can't eat a bunch of peanut butter and then take a bunch of fish oil to cancel it out."

and another "A "paleo" cupcake is still a cupcake."

'Don't sleep with the light on." - Chris (mainly because I dig Lights Out by Wiley)

My own main rule would be,

"Let food be thy medicine."

But in all fairness, credit should go to Hippocrates on that one.

I like this one:

"Don't think naively that plants are your friendly food friends; they've evolved as immobile creatures with toxin-laden tissues for protection against herbivory."

I believe that Kurt Harris says it this way: "Nature is beautiful, and it's trying to kill you."

I also like these: "Don't disrespect the spirit of The Ten Commandments" and "Don't disrespect your ancestry."

Mine would be "Let health, not appearance, be your motive; let wisdom, not knowledge, be your guide."

I think another good meta rule for me is "Don't experiement with more than one variable."

I have problems some times with changing a ton of things at once, feeling a little worse, and not knowing what to revert back to.

Here is mine: "Remember that biological systems almost always involve conflicts, trade-offs and compromises between conflicting factors, there is no perfection to reach."

This applies as much to the "perfect" diet or exercise as anything.

In evolutionary biology a trade-off between two traits is said to occur when an increase in fitness due to a change in one trait is opposed by a decrease in fitness due to a concomitant change in the second trait. The belief that evolutionary change is modulated and constrained by such trade-offs is a central pillar of evolutionary thought.

experiment on yourself conservatively.

I found the post (and website) a little overblown. Prententious even. But hey, if that's your style, so be it. I was also shocked by one of the commenters - "I seemed to have a developed a taste for this raw rotting meat." I thought I was fairly primal, but that's extreme! Anyway, I don't have rules, but I do like sarah-ann's point about dogma - it's easy to become dogmatic when you are at the edge of the mainstream.

Thanks, everyone!

I've added these to my running list.

Keep sharing them; much appreciated!

Best,

Brent