Milan Kundera's Unbearable Lightness of Life is also very good.
Walden
I think Sophie's World is not bad. If you read it with Sophie's Dictionary, it will be more touching.
Personally, I think Fortress Besieged is a very elegant and humorous text.
That's all for now. I bought them all.
Where are the books? If you collect it, it is best to have a hardcover edition, and it is best to have a limited edition. What a pity! I want to buy a book limited to 10 thousand copies nationwide, and it's sold out! This requires everyone to pay more attention to reading magazines and newspapers!
In short, this is a long-term process, and nothing can be done overnight.