The only way to do great work is to love what you do.
The sociological imagination enables us to grasp history and biography and the relations between the two within society.
如果时空穿梭是可能的,那从未来穿越回来的旅客在哪里呢?
一个奇怪的事实是,关于地球史前条件得出了完全相反的结论,这反映了我们目前知识的不完整状态。