You may not realize it when it happens, but a kick in the teeth may be the best thing in the world for you.
The advancement of mathematics is through the continuous questioning of established truths.
最好的领导者是那些倾听多于发言的人。
历史不仅仅是发生了什么,而是我们记得什么以及我们如何记得它。
The historian walks a tightrope between fact and imagination.