I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

In Africa there is a concept known as 'ubuntu' - the profound sense that we are human only through the humanity of others; that if we are to accomplish anything in this world it will in equal measure be due to the work and achievement of others.

People acting together as a group can accomplish things which no individual acting alone could ever hope to bring about.

No one has ever achieved anything significant without a chorus of critics standing on the sidelines explaining why it can't be done.

Happiness lies in the joy of achievement and the thrill of creative effort.

Being acknowledged for your work is always a great accomplishment, whether it's people in my city, kids in the street, all the way up to the Grammys.