Character is in turn the enduring source of virtue. It stands by itself and excites admiration in others. It is not obedience to authority, and while it is often consistent with and reinforced by religious belief, it is not piety.

The ideal scientist thinks like a poet and works like a bookkeeper

The education of women is the best way to save the environment.

Humanity, in the desperate attempt to fit 8 billion or more people on the planet and give them a higher standard of living, is at risk of pushing the rest of life off the globe.

'The Creation' presents an argument for saving biological diversity on Earth. Most of the book is for as broad an audience as possible.

The great challenge of the twenty-first century is to raise people everywhere to a decent standard of living while preserving as much of the rest of life as possible.

Let us see how high we can fly before the sun melts the wax in our wings.