In the end, we will remember not the words of our enemies, but the silence of our friends.

The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences.

The pursuit of knowledge is a journey without end.

The writer must be a defender of the individual against the collective.

I believe in such cartography – to be marked by nature, not just to label ourselves on a map like the names of rich men and women on buildings.

The future of food security lies in our ability to adapt and collaborate across borders.

The past is a kind of future that has already happened.