The invention of the cotton gin was a mere accident; I was then young and very poor, and it was a great object with me to realize something from it.
轧棉机的发明纯属偶然；那时我还很年轻，非常贫穷，对我来说从中实现一些价值是一个重要的目标。
创新是在竞争激烈的行业中保持领先的关键。
The story of human evolution is far from over.
Innovation in forestry practices is key to balancing economic growth and environmental protection.
"The only thing we have to fear is fear itself."
教育的目的是使个人能够继续他们的教育。