Science is not just about facts, but about understanding the underlying principles that govern those facts.
科学不仅仅是关于事实，而是理解支配这些事实的基本原理。
I am interested in the margins, in those who have been excluded from history.
拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到保护，不受无序和缺陷的影响。