His peaceful resistance shook the foundations of an empire, exposed the emptiness of a repressive ideology, and proved that moral leadership is more powerful than any weapon.

The spirit's there and that's not just my imagination. I think if you look at surveys and attitudes among young people, you see it.

When you see a Donald Trump and a Bernie Sanders, very unconventional candidates, have considerable success, then obviously there's something there that's being tapped into; a suspicion on globalization, a desire to reign in it's excesses, a suspicion of elites and governing institutions that people feel may not be responsive to their immediate needs. And that sometimes gets wrapped up in issues of ethnic identify or religious identity or cultural identity, and that can be a volatile mix.

Cuba is actually one where I am more optimistic because of the unique nature of Cuba - 90 miles off our shore with a massive ex-patriot population, now Cuban-American population that still have deep links to the island. There I am more confident that over time that the winds of commerce and telecommunication and travel start shifting the nature of that regime. But that's a small country which has almost a unique relationship to us.

America and Islam are not exclusive and need not be in competition. Instead, they overlap, and share common principles of justice and progress, tolerance and the dignity of all human beings.

My job is not to represent Washington to you, but to represent you to Washington.

Simple exchanges can break down walls between us, for when people come together and speak to one another and share a common experience, then their common humanity is revealed. We are reminded that we're joined together by our pursuit of a life that's productive and purposeful, and when that happens mistrust begins to fade and our smaller differences no longer overshadow the things that we share. And that's where progress begins.