"And I urge you to please notice when you are happy, and exclaim or murmur or think at some point, 'If this isn't nice, I don't know what is.'"

"I don't know what it is about you, but you make me want to be a better man."

"Mankind has been making a mess of things for a long time."

"We are all in this together, so let's try to be nice to each other."

"The more you learn, the more you know. The more you know, the more you forget. The more you forget, the less you know. So why bother to learn?"