We believe human begins have existed for only a small fraction of cosmic history, because human race has been improving so rapidly in knowledge and technology that if people had been around for millions of years, the human race would be much further along in it's mastery.

Children in backseats cause accidents. Accidents in backseats cause children.

Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'

I do not believe in a personal God.

When I hear of Schrödinger's cat, I reach for my pistol.

My expectations were reduced to zero when I was 21. Everything since then has been a bonus.

Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.