We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feel….

Time spent with children is time well spent. Their little minds are not constrained by 'reality' or focused upon goals. Anything and everything is po….

We've arranged a civilization in which most crucial elements profoundly depend on science and technology..

These days there seems to be nowhere left to explore, at least on the land area of the Earth. Victims of their very success, the explorers now pretty….

If you want to make a [rhubarb] pie from scratch, first you have to create the universe..

What an astonishing thing a book is. It’s a flat object made from a tree with flexible parts on which are imprinted lots of funny dark squiggles. But….

Human beings have a demonstrated talent for self-deception when their emotions are stirred..

The wind whips through the canyons of the American Southwest, and there is no one to hear it but us - a reminder of the 40,000 generations of thinkin….

For all its material advantages, the sedentary life has left us edgy, unfulfilled, even after 400 generations in villages and cities, we haven't forg….

Is mankind alone in the universe? Or are there somewhere other intelligent beings looking up into their night sky from very different worlds and aski….

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits h….

'In his celebrated book, 'On Liberty', the English philosopher John Stuart Mill argued that silencing an opinion is "a peculiar evil." If the opinion….

The fact that so little of the findings of modern science is prefigured in Scripture to my mind casts further doubt on it divine inspiration..

I can find in my undergraduate classes, bright students who do not know that the stars rise and set at night, or even that the Sun is a star..

If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?.

Cutting off fundamental, curiosity-driven science is like eating the seed corn. We may have a little more to eat next winter but what will we plant s….

A galaxy is composed of gas and dust and stars - billions upon billions of stars. Every star may be a sun to someone..

The significance of our lives and our fragile planet is then determined only by our own wisdom and courage. We are the custodians of life's meaning. ….

Not all birds can fly. What separates the flyers from the walkers is the ability to take off..

She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only thro….

One of the great commandments of science is: 'Mistrust arguments from authority.'.