"I think we can allow the therapeutic uses of nuclear transplant technology, which we call cloning, without running the danger of actually having live human beings born."

"There is actually a fair amount of money being put behind science today."

"When we talk about stem cells, we are actually talking about a complicated series of things, including adult stem cells which are largely cells devoted to replacing individual tissues like blood elements or liver or even the brain."

"When are we going to say cancer is cured? I'm not sure when that will happen, if that will happen because cancer is a very slippery disease and it involves a vast number of cells in the body and those cells are continually mutating."

"I think it's unnecessary to be mean for the sake of being mean, but I do believe you have to be truthful, but with love."

"Obviously comedic styles do change."

"I'm not trying to hide from my past. I want to roll in it. Like a dog, rolling in feces, I'm rolling in the feces of my greatest hits - that's a bit of a wild way of looking at it, but I am a man, and we do like rolling in our own feces at times."

"When you have confidence, you can have a lot of fun. And when you have fun, you can do amazing things."