"I made a mistake, Kemp, a huge mistake, in carrying this thing through alone. I have wasted strength, time, opportunities. Alone—it is wonderful how little a man can do alone!" (24.22)
Here's where Griffin ends up, even though he seemed to love being alone when he started to tell Kemp his story. Of course, Griffin's plan to recruit Kemp doesn't work out and Griffin is forced to work alone. Finally, he recognizes that isolation comes with a price.