Pray as if it all depends upon God, for it does. But work as if it all depends upon us, for it does. - George W. Bush

We know that these challenges can be overcome because history moves in the direction of justice. The evils of slavery were accepted and unchanged for centuries, yet eventually the human heart would not abide them. There is a voice of conscience and hope in every man and woman that will not be silenced, what Martin Luther King called a certain kind of fire that no water could put out. That flame could not be extinguished at the Birmingham jail. It could not be stamped out at Robben Island prison. It was seen in the darkness here at Goree Island, where no chain could bind the soul. This untamed fire of justice continues to burn in the affairs of man, and it lights the way before us. May God bless you all.

It's impossible to make sense of such violence and suffering. Those whose lives were taken did nothing to deserve their fate. They were simply in the wrong place at the wrong time. Now they're gone -- and they leave behind grieving families, and grieving classmates, and a grieving nation.

Secondly, you are blessed to live in the greatest Nation – ever. Here you can strive and succeed as far as you dare to dream. It says something about our country that millions around the world are willing to leave their homes and families and risk everything to come here and realize the American dream. Their pursuit of that dream invigorates our national soul. It renews our country's character. And it adds vitality to our culture.