"If you live in a ghetto and really want not to just change your life and your family's life but change your ghetto's life, make your ghetto a good neighbourhood, learn science try to be like Mark Zuckerberg, Bill Gates and Steve Jobs."

"If Apple's a technology company in the music industry, why can't somebody in the music industry make technology?"

"There are five issues that make a fist of a hand that can knock America out cold. They're lack of jobs, obesity, diabetes, homelessness, and lack of good education."

"I don't like politics."

"Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important."

"A courageous heart knows that the true master is an eternal student."

"The more education a woman has, the wider the gap between men's and women's earnings for the same work."

"Know then thyself, presume not God to scan The proper study of mankind is man."