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宇宙不僅比我們想象的更奇怪，它比我們能夠想象的還要奇怪。

The only limit to our realization of tomorrow will be our doubts of today.

I am not a political person by nature. I don't think writers should be political persons. But in South Africa, you can't keep politics out of your life.

The Internet is not just a technology, it's a social phenomenon.

領導力在于著眼數十年后的未來而今天采取行動。

我不是數學的英雄。我甚至沒有那么成功；這就是為什么我不希望每個人都看著我。