The more we learn, the more we realize how little we know.

在能源领域，合作是解决世界上最紧迫挑战的关键。

过去从未死去，甚至还未过去。

The meaning of a word is not a mental entity， but a social practice.

The competent programmer is fully aware of the strictly limited size of his own skull; therefore he approaches the programming task in full humility, and among other things he avoids clever tricks like the plague.