"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."

"The true measure of a scientist's worth is not in the accolades received, but in the impact of their work on the world."

抽象的力量在于它允许我们忽略不相关的细节，专注于问题的本质方面。

强调持续进步的重要性。