Occasionally I would like the German people to give us the benefit of the doubt, given our history, as opposed to assuming the worst -- assuming that we have been consistently your strong partners and that we share a common set of values.

Muslim leaders around the globe have to continue working with us to decisively and unequivocally reject the hateful ideology that groups like ISIL and al Qaeda promote. To speak out against not just acts of violence, but also those interpretations of Islam that are incompatible with the values of religious tolerance, mutual respect, and human dignity.

The path towards sustainable energy sources will be long and sometimes difficult. But America cannot resist this transition, we must lead it.

When we start using religion as a bludgeon in politics, when we start questioning other people's faith, we start using religion to divide, instead of bring the country together, then I think we've got a problem.

And when it comes to developing the high standards we need, it's time to stop working against our teachers and start working with them. Teachers don't go in to education to get rich. They don't go in to education because they don't believe in their children. They want their children to succeed, but we've got to give them the tools. Invest in early childhood education. Invest in our teachers and our children will succeed.

Ultimately, if you think about all the youth that everybody has mentioned here in Africa, if everybody is raising living standards to the point where everybody has got a car and everybody has got air conditioning, and everybody has got a big house, well, the planet will boil over - unless we find new ways of producing energy.

Men have to take more responsibility. Men have to intervene