Only a life lived for others is a life worthwhile.

I am more interested in what can be done with the knowledge than in the knowledge itself.

Sometimes, the hardest part of solving a case is facing the truth.

The sun is our most powerful tool in Africa. We must learn to work with it, not against it.

The great man is a public misfortune.

你无法改变你的来处，但你可以改变你的去向。

My work is a form of archaeology, digging up forgotten stories.