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.

Eight months later, having left Columbia, I was studying physics in a summer program and working in Colorado when I decided to enroll as a graduate student in biophysics.

Nevertheless, as is a frequent occurrence in science, a general hypothesis was constructed from a few specific instances of a phenomenon.

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

About seven years later I was given a book about the periodic table of the elements. For the first time I saw the elegance of scientific theory and its predictive power.

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

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.