"There's nothing more exciting than science. You get all the fun of sitting still, being quiet, writing down numbers, paying attention. Science has it all."

"Challenges are what makes life interesting; overcoming them is what makes life meaningful."

"I've dreamt in my life dreams that have stayed with me ever after, and changed my ideas: they've gone through and through me, like wine through water, and altered the colour of my mind."

"The way to get on with a cat is to treat it as an equal--or even better, as the superior it knows itself to be."

"Energy is that amazing feeling that comes to life inside of you when you鈥檙e happy and believe in yourself."

"Animals are always loyal and love you, whereas with children you never know where you are."

"One of the hardest tasks of leadership is understanding that you are not what you are, but what you're perceived to be by others."

"I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth."

"Of children as of procreation - the pleasure momentary, the posture ridiculous, the expense damnable."

"You have to learn that if you start making sure you feel good, everything will be okay."

"When the rich wage war it's the poor who die."

"If something is too hard to do, then it's not worth doing. You just stick that guitar in the closet next to your shortwave radio, your karate outfit and your unicycle and we'll go inside and watch TV."