"I actually hate those terms. I find them counter productive ... Don’t get me wrong. I love Birkenstocks, hugging trees, and hippies. But I also believe economic growth is positive for the world if done intelligently. Now take the word sustainable. If I were to ask my wife what she thought about our relationship, and she said it was sustainable, I would be very concerned. I would rather her describe it by using words such as passionate or thriving." (Quoted from article)