我们知道的越多，就越意识到自己知道的多么少。
生命的意义在于追求真理。
The most thought-provoking thing in our thought-provoking time is that we are still not thinking.
借助显微镜，没有什么小到能逃过我们的探究；因此，一个新的可见世界被揭示给了我们的理解。
一本书是作者与读者之间跨越时空的对话。
Every risk is worth taking as long as it's for a good cause, and contributes to a good life.
The writer is delegated to declare and to celebrate man's proven capacity for greatness of heart and spirit—for gallantry in defeat, for courage, compassion and love. In the endless war against weakness and despair, these are the bright rally flags of hope and of emulation.