书籍是连接我们与过去的桥梁。
"Books are the bridges that connect us to the past."
Small, deliberate actions practiced consistently can lead to big changes in happiness levels.
The tragedy of great power politics is that even well-intentioned states are forced to act in ways that can lead to conflict and war.
拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到对称性和拓扑的保护，使它们对某些类型的无序免疫。
成为人就是永远不完整，永远在寻找。