Science is exploration. The fundamental nature of exploration is that we don't know what's there. We can guess and hope and aim to find out certain things, but we have to expect surprises.

The imposing edifice of science provides a challenging view of what can be achieved by the accumulation of many small efforts in a steady objective and dedicated search for truth.

I was brought up as Christian, and while my ideas have changed, I have always felt myself religiously oriented.

It was strange, in a way, because there were no ideas involved in the laser that weren't already known by somebody 25 years before lasers were discovered. The ideas were all there; just, nobody put it together.

Religion can have psychological and social roles, but in terms of really explaining how things work, science works differently. Science is based on material elements at the core.

My kids are just waiting for me at home. I'm their father. They're wondering, 'When's Daddy coming home?'

Parenting is not for sissies. You have to sacrifice and grow up.

The spirits of Havelock Ellis, Magnus Hirschfeld and Richard Freiherr von Krafft-Ebbing waft through the text to lend 'The Third Sex' an air of scientific authority.