That’s a good one. A few others that help with my executive dysfunction are:

• “Don’t let perfect be the enemy of good.” (It’s better to do something than to obsess over trying for the impossible goal of ‘perfection’.)
• “Anything worth doing is worth doing poorly.” (This one helps especially with art and things I enjoy but struggle to do if I’m not instantly great at them.)
• “Laziness does not exist.” (This was inspired by a Medium article I read years ago which explained there is always an underlying cause of procrastination. Mental or physical ill health issues, uncertainty about the task, fear of failure, etc. When I am struggling to move forward, I now look for that reason and can begin to remove the barrier.)