Be Strict to Yourself and Tolerating to Othersfleeting
You don’t know what is in the head of others. What they achieve is maybe less than what you would expect, but it might be the best they can give you.
Better assume they are doing their best, realize you don’t have control other this and decide to be glad with it.
On the contrary, you know what is in your head, and you know when you actually are doing your best. For that reason, you have no excuse not to do better if you can.