Stay true to yourself, yet always be open to learn.

The ground for taking ignorance to be restrictive of freedom is that it causes people to make choices they would not have made had they seen what their choices involved.

【释义】人总是旧友可贵，物总是新的好。

"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."