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

Interview with Infinity Plus (February 2001)

Force has no place where there is need of skill.

有時，最危險的謊言是我們對自己說的那些。

Technological breakthroughs require long-term investment and patience; short-term gains should not be the focus.

The most important questions in life often have no answers, and we must learn to live with them.

發現的喜悅無疑是人類心靈所能感受到的最活躍的。