历史学家是反向的先知。
Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.
任何牺牲基本自由以换取短暂安全的人，最后既得不到安全也得不到自由。（放弃基本的自由以换取苟安的人，终归失去自由，也得不到安全。）
我们把世界看错了，反说它欺骗我们。
成功的关键在于不断学习和适应。
"记忆是最残酷的暴君，也是最仁慈的救主。"
If humanity doesn’t land on Mars in my lifetime， I would be very disappointed.
我不害怕冒险。我认为这就是生活的意义。
The biggest risk is not taking any risk.
"The stories of the marginalized and the displaced are essential to understanding the full complexity of our world."