The foundation of national morality must be laid in private families.
Every failure in the lab teaches you something valuable—if you're paying attention.
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.
贫穷不仅仅是缺钱；它是关于拥有的太少以至于你甚至无法做出正确的决定。
Never stop learning; the day you think you know it all is the day you start falling behind.
The best stories are those that leave room for the reader to imagine.
今天种植的每一棵树都是留给后代的遗产。
每个句子都是一次旅程，每个词都是一步。