1, a BBC documentary, covers a very comprehensive range, including social humanities and natural sciences. Up to now, there are hundreds of documentaries, and the corresponding playlists can be found from websites such as Youku and Tudou.
2. In the open classes of Harvard, Yale, Oxford and other universities, my favorite courses are economics and philosophy, with Chinese subtitles, which makes me feel immersive. You can feel the atmosphere of the master, or you can go to Sina to search for an open class.
I don't know if you have heard of "audio books". Generally speaking, it is a way to read some famous books for free and put them into mobile phones or MP3 players. You can use a lot of spare time to charge them. Baidu won't let you send links, so I can't help it. You can directly search for keywords.
4. There is a "polar video education" in domestic universities, mostly about philosophy and history, which can be learned from Baidu and mostly about Wuhan University.
5. Develop the good habit of going to Baidu Encyclopedia, insist on answering a few questions that you are good at every day, and edit a few professional entries from Baidu, which will benefit both people and themselves. I studied law, edited hundreds of legal terms, and practiced a lot in the process.
In addition, there are ways to search keywords, mainly to find documentaries and course videos, such as The Rise of Great Powers, The Power of Companies, Wall Street and so on. , is almost a must-see information, but also a good way to relax.