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。
The secret of good baking is to keep it simple.
To love to read is to exchange hours of ennui for hours of delight.
成功不在于你担任的职位,而在于你带来的改变。