The size of your dreams must always exceed your current capacity to achieve them. If your dreams do not scare you, they are not big enough.

I work hard, I work late, I have nothing on my conscience. When I go to bed, I sleep.

Ebola is not just a health crisis. Across West Africa, a generation of young people risks being lost to an economic catastrophe.

We are here because we share a fundamental belief: that poverty, illiteracy, disease and inequality do not belong in the twenty-first century. We share a common purpose: to eradicate these ills for the benefit of all. And we share a common tool to achieve this: the Millennium Development Goals.

If your dreams do not scare you, they are not big enough.

Women work harder. And women are more honest; they have less reasons to be corrupt.

Ethnicity should enrich us; it should make us a unique people in our diversity and not be used to divide us.