Most books are old. This is not a disadvantage: this is precisely what makes them valuable. They stand against the conventional wisdom of today simply because they’re not from today. Even if they merely reflect the conventional wisdom of their own day, they say something different from what you hear all the time. But the great books, the ones you find on a syllabus, the ones people have continued to read, don’t reflect the conventional wisdom of their day. They say things that have the permanent power to disrupt our habits of thought. They were revolutionary in their own time, and they are still revolutionary today. And when I say “revolutionary,” I am deliberately evoking the American Revolution, because it was a result of precisely this kind of independent thinking. Without solitude—the solitude of Adams and Jefferson and Hamilton and Madison and Thomas Paine—there would be no America.
So solitude can mean introspection, it can mean the concentration of focused work, and it can mean sustained reading. All of these help you to know yourself better. But there’s one more thing I’m going to include as a form of solitude, and it will seem counterintuitive: friendship. Of course friendship is the opposite of solitude; it means being with other people. But I’m talking about one kind of friendship in particular, the deep friendship of intimate conversation. Long, uninterrupted talk with one other person. Not Skyping with three people and texting with two others at the same time while you hang out in a friend’s room listening to music and studying. That’s what Emerson meant when he said that “the soul environs itself with friends, that it may enter into a grander self-acquaintance or solitude.” - William Deresiewicz