We are star stuff harvesting sunlight.

The well-meaning contention that all ideas have equal merit seems to me little different from the disastrous contention that no ideas have any merit.

The hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment.

Science is not only compatible with spirituality; it is a profound source of spirituality.

There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.

Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.

I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence.