“It’s important to do tasks that are high leverage and meaningful, and it’s also important that you know how to manage your time, energy, and attention so you have the resources you need to get more done. But at the end of the day, when you have no more time, energy, or attention left, the only thing you’re left with is what you have accomplished, and the difference you have made in the world because you did something valuable with a day of your life.”