"I believe that every day is Day 1. You have to approach every day with the same energy and enthusiasm as if it were your first day."

"I think it's important to have a purpose in life. Otherwise, what's the point?"

"If you double the number of experiments you do per year, you're going to double your inventiveness."

"We are not in the business of selling books; we are in the business of helping people find books they want to read."

"The thing that I have learned over time is that the thing that you want to do the most is the thing that you should do."