My commitment to a humane and peaceful world continues to this day.

I was born in 1923 into a middle class Jewish family in Vienna, a few years after the end of World War I, which was disastrous from the Austrian point of view.

I was fortunate to find an extraordinary mathematics and applied mathematics program in Toronto.

During one or two summers, as well as part-time during the school year, I worked for a small Canadian company which developed electrical instruments for military planes.

I have just joined the Board of the Population Institute because I am convinced that early stabilization of the world's population is important for the attainment of this objective.

Originally I had planned to revert to nuclear physics there, in particular the structure of the deuteron.

My father, who had lost a brother, fighting on the Austrian side in World War I, was a committed pacifist.

When you fill others lives with love and happiness, your life will be full with pleasant surprises.

Was your magic carpet out of commission?

In selfish men caution is as secure an armour for their foes as for themselves.

I watch movies and sports. I can count on the fingers of my hand the number of times I have watched an hour show. I never watch a half-hour show, and I never watch myself.

Doing what you're afraid of, getting out of your comfort zone, taking risks like that- that's what life is.

But what sets Europe apart is we insist on a social model that consists of solidarity, equal opportunity and a certain amount of redistribution.

Conventional cancer treatments are in place as the law of the land because they pay, not heal, the best.

Are you ready to stop colluding with a culture that makes so many of us feel physically inadequate? Say goodbye to your inner critic, and take this pledge to be kinder to yourself and others.

One [Big Data] challenge is how we can understand and use big data when it comes in an unstructured format.

A problem is a question you haven't yet answered to a level that has fulfilled you.