This is the most prominent principle in Stoicism. At all times, we need to focus on the things we control, and take the rest as it happens. What already is has to be accepted because it’s beyond our power to undo it. What’s beyond our power is ultimately not important for our flourishing. What’s important for our flourishing is what we choose to do with the given external circumstances. So no matter the situation, it’s always within our power to try to make the best with it, and to live in harmony with our ideal self.
