In a world groaning under the weight of poverty, ignorance, and war, it's hard to imagine how we will ever solve all our problems.
Or even save the planet from destruction.
In a world full of grubby self serving politicians, it's hard to find a political hero.
But I do have one, and his name is José Mujica.
It's a small country of just over three million people wedged between Argentina and Brazil.
But little Uruguay has just done what other bigger countries have never dared to do: legalize the production and sale of marijuana.
And for that I see is already attracting the unwanted attention of the Drug Czars at the United Nations.