"Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious."

"There are no boundaries to human endeavor. We are all different. However bad life may seem, there is always something you can do and succeed at. While there's life, there is hope."

"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."

"Mathematics is the language in which God has written the universe."

"I think [contacting an alien civilization] would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet…"