Those who can't imagine change reveal the deficits of their imaginations, not the difficulty of change.

These numbers are staggering, in fact incomprehensible. By all accounts, we are dealing with the greatest health crisis in human history.

As long as poverty, injustice and gross inequality persist in our world, none of us can truly rest.

In my country we go to prison first and then become President.

We owe our children – the most vulnerable citizens in any society – a life free from violence and fear.

There is nothing to popularize a person. Only humility, which is the ability to remain in the background and to put others in the front light.

When the water starts boiling it is foolish to turn off the heat.