“I did think there were one or two referees who had a personal thing against me. It wasn't them versus Celtic - it was them against me! I just think they wanted to take me on.”

“I'm a better coach now than when I joined Celtic. The longer you stay in any job, the better you become. If you lose your drive, your enthusiasm, your imagination, that experience is no good...”

“Fitness is a curve. You can be Lance Armstrong, or you can be really out of shape at the opposite end. People enter the curve wherever they are and then they can move up the curve, by better...”

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”

“I'm selfish, impatient and a little insecure. I make mistakes, I am out of control and at times hard to handle. But if you can't handle me at my worst, then you sure as hell don't deserve me...”

“You've gotta dance like there's nobody watching, Love like you'll never be hurt, Sing like there's nobody listening, And live like it's heaven on earth.”

“So many books, so little time.”

“You know you're in love when you can't fall asleep because reality is finally better than your dreams.”

“The person, be it gentleman or lady, who has not pleasure in a good novel, must be intolerably stupid.”