For all the time executives spend concerned about physical strength and health, when it comes down to it, mental strength can mean even more. Particularly for entrepreneurs, numerous articles talk about critical characteristics of mental strength—tenacity, “grit,” optimism, and an unfailing ability as Forbes contributor David Williams says, to “fail up.”

However, we can also define mental strength by identifying the things mentally strong individuals don’t do. Over the weekend, I was impressed by this list compiled by Amy Morin, a psychotherapist and licensed clinical social worker, that she shared in LifeHack. It impressed me enough I’d also like to share her list here along with my thoughts on how each of these items is particularly applicable to entrepreneurs.

Click here for the list at Forbes.com