Never let age be a barrier to learning or discovery.
The true historian is a soldier of truth.
最好的科学家是那些永不停止问为什么的人。
解释:花开得好看,但不结果实,比喻中看不中用,形式华丽而没有实际内容,是耻辱。
The best way to predict the future is to create it.