教育的艺术必须从教育的科学中衍生出其规则。

Why worry? If you’ve done the very best you can, worry won’t make it any better.

你必须愿意失败才能成功。

Technology alone won't save us; it's how we apply it with wisdom and foresight that makes the difference.

I don’t sleep, I rest my eyes.

"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."