He sat there thinking. Thinking for a long while. Thinking about the things he had done, things left to be done, things he was doing.

Then he let his mind wonder away-around.

And there as he sat in the night, for it was now night, he realized that even though humans are flawed, they tried till there was no hope and some even when there was no hope thinking that there might be some hope left somewhere.

He still thinks that humans are flawed but now he thinks that they are flawed because nothing can be perfect or flawless fully. He himself is flawed in someway.