"With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how."

"The hardest thing in life is to know which bridge to cross and which to burn."

"Die Kunst des Schreibens besteht darin, die Welt so zu beschreiben, wie sie ist, und gleichzeitig so, wie sie sein könnte."

"In the end, we will remember not the words of our enemies, but the silence of our friends."

解决复杂问题的关键在于将它们分解成更简单的问题。