“Perseverance is the hard work you do after you get tired of doing the hard work you already did.”

“I would replace most foreign aid with a tax credit for businesses to invest. I think U.S. bureaucrats giving foreign bureaucrats money is a guaranteed failure. And we've had about 50 years' experie...”

“If you take all the money we've spent at NASA since we landed on the moon and you had applied that money for incentives to the private sector, we would today probably have a permanent station on th...”

“One morning, just like 9/11, there's going to be a disaster. I have yet to see the United Nations do anything effective with either Iran or North Korea.”

“I don't see how the party that says it's the party of the family is going to adopt an immigration policy which destroys families that have been here a quarter century.”

“Both sides in Syria are bad. One side is a brutal dictator, and the other includes Islamists and terrorists who are dangerous already and who would be brutal in power if given the chance.”

“I could never be your godAnd I don't even think I want the job anymore”

“A stupid leader is like a dog whos in love with his own voice. He will bark incessantly believing that people admire his tune. A wise leader gets his point across in as few words as possible and th...”

“A leader, without wisdom, is dangerous. A wise person, without leadership, is useless. But if they work together, they are unstoppable.”

“Not everyone may not think the way you do.”

“I think you're wrong.""Think what you like.”

“To think, to think, even with a split second left - to think was the only hope.”

“The hobgoblin of a little mind may be the genius of a great one.”

“To force oneself to believe and to accept a thing without understanding is political, and not spiritual or intellectual.”

“It's difficult being an intellectual in a bread and butter sort of town.”