Something as curious as the monarchy won't survive unless you take account of people's attitudes. After all, if people don't want it, they won't have it.

If you think about your and my grandchildren, this is what really worries me. I don't want them - if I'm still alive by then - to say, 'Why didn't you do something about it?', when you could have done.

As human beings we suffer from an innate tendency to jump to conclusions; to judge people too quickly and to pronounce them failures or heroes without due consideration of the actual facts and ideals of the period.

Organic farming has been shown to provide major benefits for wildlife and the wider environment. The best that can be said about genetically engineered crops is that they will now be monitored to see how much damage they cause.

Any difficulties which the world faces today will be as nothing compared to the full effects which global warming will have on the world-wide economy.

There is no doubt that we live in an age of unprecedented, and sometimes terrifying, technological advance where the speed of advance so often outstrips the necessary ethical considerations.

Fast food may appear to be cheap food and, in the literal sense it often is, but that is because huge social and environmental costs are being excluded from the calculations.