"What makes human beings unique? Some say it's language or tools. Others say it's logical reasoning. They obviously haven't met many humans."

"I have no idea what the universe is for, but I'm glad it's here."

"My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all."

"Some people say I have a chip on my shoulder but it is actually my chin."

"We are all visitors to this planet. We are here for a short time, and we must make the most of it."