The sustainability revolution will, hopefully, be the third major social and economic turning point in human history, following the Neolithic Revolution - moving from hunter-gathering to farming - and the Industrial Revolution

Hong Kong has created one of the most successful societies on Earth.

One of the main reasons for the conflict in Syria, and the terrorism that it's spawned, is climate change and drought.

I learned the way a monkey learns - by watching its parents.

Be neither too remote nor too familiar.

Some recent occurrences such as the BSE disaster and even perhaps - dare I mention it - the present severe weather conditions in our country are, I have no doubt, the consequences of mankind's arrogant disregard of the delicate balance of nature. We have to find a way of ensuring that our remarkable and seemingly beneficial advances in technology do not just become the agents of our own destruction.

Humility is to make a right estimate of one's self. It is no humility for a man to think less of himself than he ought, though it might rather puzzle him to do that.