"However difficult life may seem, there is always something you can do and succeed at. It matters that you don't just give up."

"The universe is a beautiful and dangerous place, and I'm glad to be a part of it."

"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."

"We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet."

"Without imperfection, you or I would not exist."