Water is our most precious resource, but we waste it, just as we waste other resources, including oil and gas.
We need to continue to decrease the growth rate of the global population; the planet can't support many more people.
We are sliding back into a dark era, and there seems little we can do about it. I am profoundly depressed at just how difficult it has become merely to get a realistic conversation started on issues such as climate change or genetically modified organisms.
The influence of a science adviser is only as good as ears open to that science advice.
We wouldn't think of going to our doctor and saying 'Treat me the way doctors treated people in the 19th Century', and yet that's what we're demanding in food production.
New molecular methods that add or modify genes can protect plants from diseases and pests and improve crops in ways that are both more environmentally benign and beyond the capability of older methods.
Myths about the dire effects of genetically modified foods on health and the environment abound, but they have not held up to scientific scrutiny. And, although many concerns have been expressed about the potential for unexpected consequences, the unexpected effects that have been observed so far have been benign.
Picasso once remarked I do not care who it is that has or does influence me as long as it is not myself.
If you are talented, you can really do anything. And if your heart is at the right place and you have the passion for it, you can go for it and do it.
We did not find it difficult to deal with Bush and his administration, because it is similar to regimes in our countries - both types include many who are full of arrogance and greed.
Men give me credit for some genius. All the genius I have lies in this; when I have a subject in hand, I study it profoundly. Day and night it is before me. My mind becomes pervaded with it. Then the effort that I have made is what people are pleased to call the fruit of genius. It is the fruit of labor and thought.