"If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn't turn out very well for the Native Americans."

"The universe is a place of endless possibilities, and we are just beginning to explore them."

"There is a fundamental difference between religion, which is based on authority, and science, which is based on observation and reason. Science will win because it works."

"The ultimate goal of science is to provide a single theory that describes the whole universe."

"Finally, a question about something important. My advice to any heartbroken young girl is to pay close attention to the study of theoretical physics. It would not be beyond the realms of possibility t…"