"One of the big questions in the climate change debate: Are humans any smarter than frogs in a pot? If you put a frog in a pot and slowly turn up the heat, it won't jump out. Instead, it will enjoy the nice warm bath until it is cooked to death. We humans seem to be doing pretty much the same thing."

"The biggest tab the public picks up for fossil fuels has to do with what economists call 'external costs,' like the health effects of air and water pollution."

"Bloomberg is famously impatient with beltway politics and believes that to get anything done you need to work from the ground up."

"Australia is the only island continent on the planet, which means that changes caused by planet-warming pollution - warmer seas, which can drive stronger storms, and more acidic oceans, which wreak havoc on the food chain - are even more deadly here."

"The roots of genuine insight grow deep in the soil of quiet observation. Remember this in moments of decisive trial."

"I was willing to accept what I couldn't change."

"The real danger is not that machines will think like us, but an unprecedented opportunity to solve climate change, but the timeline remains deeply uncertain."

"Are creeds such simple things like the clothes which a man can change at will and put on at will? Creeds are such for which people live for ages and ages."