Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.

The only source of knowledge is experience.

Fear has its use but cowardice has none.

He has a right to criticize, who has a heart to help.

When I came to Johannesburg from the countryside, I knew nobody, but many strangers were very kind to me. I then was dragged into politics, and then, subsequently, I become a lawyer.

Joy in looking and comprehending is nature's most beautiful gift.

Peace begins with a smile.

I've always wanted to own and control the primary technology in everything we do.

One individual may die for an idea, but that idea will, after his death, incarnate itself in a thousand lives.

It is our duty to pay for our liberty with our own blood. The freedom that we shall win through our sacrifice and exertion, we shall be able to preserve with your own strength.

The ambition of the greatest men of our generation has been to wipe every tear from every eye. That may be beyond us, but so long as there are tears and suffering, so long our work will not be over.

I believe in equality for everyone, except reporters and photographers.