Lincoln understood something that optimists often miss: the future isn't an overwhelming expanse we must conquer all at once, but rather a merciful parceling out of existence. The genius lies in recognizing that time's slowness is actually our greatest ally—it keeps us from being crushed by the weight of what's to come while allowing us to build toward it incrementally. When you're facing a difficult project at work or a health challenge, the temptation is to panic about the months ahead, yet Lincoln reminds us that we only ever actually *live* in single days, which makes the impossible suddenly manageable. His observation transforms what sounds like a patient acceptance into something more radical: a rebuttal against the anxiety that comes from trying to control what hasn't happened yet.