The RNA World referred to an hypothetical stage in the origin of life on Earth.

My intention was to enroll at McGill University but an unexpected series of events led me to study physics at the Massachusetts Institute of Technology.

By the time I reached high school my father's grocery store had made our life adequately comfortable and I was able to choose, without any practical encumbrances, the subjects that I wanted to pursue in college.

For our immediate family and relatives, Canada was a land of opportunity.

I spent eighteen months as a graduate student in physics at Columbia University, waiting unhappily for an opportunity to work in a laboratory and wondering if I should continue in physics.

I was born in Montreal in 1939, the second son of poor immigrants.

I should mention that while I was growing up, Einstein was presented as a worthy role model for a young boy who was good at his studies.