The history of all hitherto existing society is the history of class struggles.

天下的事情，祸患常常产生于疏忽细微之处，而人的志向也要警惕逐渐放纵。

Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.

卡缪札记

媒体公司面临的挑战是找到新的方式接触观众并从中获利。

无论我们承认与否，过去始终与我们同在。