During my lifetime most of the problems the world has faced have come, in one fashion or another, from mainland Europe and the solution from outside it.
The practice of patience guards us against losing our presence of mind. It enables us to remain undisturbed, even when the situation is really difficult. It gives us a certain amount of inner peace, which allows us some self-control, so that we can choose to respond to situations in an appropriate and compassionate manner, rather than being driven by our disturbing emotions.
Finish each day and be done with it. You have done what you could. Some blunders and absurdities no doubt crept in; forget them as soon as you can. Tomorrow is a new day; begin it well and serenely and with too high a spirit to be encumbered with your old nonsense.
The best executive is one who has sense enough to pick good people to do what he wants done, and self-restraint enough to keep from meddling with them while they do it.