Carbon is the currency of how you measure climate change, but water will be the teeth.

We will never end poverty if we don't tackle climate change.

One of the most important things about leadership is that you have to have the kind of humility that will allow you to be coached.

Ending poverty and ensuring sustainability are the defining challenges of our time. Energy is central to both of them.

Unless you invest in people, you are not going to see growth in the long term, the medium term, and maybe even the short term.

When you're working on development issues, optimism is not always based on rational analysis, often it is a moral choice.

A lot of young people dont think they can make a difference. Thats really what I am at Dartmouth to do. Im there to tell the young people, Look, a few committed souls can change the world.

We need to have a plan equal to the challenge.

Water and sanitation has not had the same kind of champion that global health, and even education, have had.

Why is it that when it comes to our most cherished social goal [health care], we not only tolerate poor execution, sometimes we even celebrate it?

There will be water and food fights everywhere.

Humor is a tool to ease the harsh realities of life.

By now he had learned. Choices are made in brief seconds and paid for in the time that remains.

The moon understands what it means to be human. Uncertain. Alone. Cratered by imperfections.

An attempt to study the evolution of living organisms without reference to cytology would be as futile as an account of stellar evolution which ignored spectroscopy.

Believing that the dream of freedom, brotherhood, and peace for all mankind will someday come true.

No man pursues what he has at hand. No man recognizes the need of pursuit until that which he desires has escaped him.

Do I race motorcycles? I do. I use the word 'race' because, I admit, what I do on a motocross bike is different than riding a Harley down the street.

For, try as we may, we cannot get behind the appearence of things to reality. And the terrible reason may be that there is no reality in the things apart from their appearences.

A contrast between country and city, as fundamental ways of life, reaches back into classical times.

Now, what is Jesus Christ? The fruit of the spirit is a good example. Jesus is total love, total joy, total peace, total patient, gentleness, goodness, faithfulness, meekness, and self-control.