The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.

Technology is only as useful as the people who use it.

我不知道五年后我会在哪里，但我会拼命努力到达那里。

The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.