"A book is a fragile creature, it suffers the wear of time, it fears rodents, the elements and clumsy hands. So the librarian protects the books not only against mankind but also against nature and devotes his life to this war with the forces of oblivion."

在科学中，我们必须接受我们最珍视的理论可能是错误的这种可能性。

Millions saw the apple fall, but Newton asked why.

The most important decision you make is to be in a good mood.