"We are built to conquer environment, solve problems, achieve goals, and we find no real satisfaction or happiness in life without obstacles to conquer and goals to achieve."

"If you make friends with yourself you will never be alone."

"Remember you will not always win. Some days, the most resourceful individual will taste defeat. But there is, in this case, always tomorrow - after you have done your best to achieve success today."

"Man maintains his balance, poise, and sense of security only as he is moving forward."

"I love my daughter, but she had me on couscous and fixed me pastas and made me eat oatmeal every morning and what else, turkey burgers, turkey bacon, and that kind of stuff. So she wants her dad to live a long time, and I do, too."

"I don't give a darn about coal or about oil. I do give a darn about oil jobs. I do give a darn about the jobs that coal can bring... I am against the Obama administration demonizing certain forms of energy and glorying others. I say, bring it all in."

"I'm an atheist, but I'm very relaxed about it. I don't preach my atheism, but I have a huge amount of respect for people like Richard Dawkins who do."

"I was being groomed to be a tennis player for sure. My grandparents and parents realised I had a natural athletic ability and if I was forced to do it, I could probably do well. But all I wanted was to play pretend."