I'm new here, so I'm very happy to be part of the community.
Yes, I would like to mention "Martin Eden" by Jack London. Sometimes after reading, there was no opportunity to come to my senses, because the plot struck to the core. Subsequently, I often rethink the personality of the heroes and the main one for the most part. If we talk about what the book can teach: any heights are achievable, whoever you are with the right approach to business, but the right attitude to life is more important for happiness. You can set more and more new goals, but not get any satisfaction from their achievement, because there is no main goal. In addition, there is a question of grief from the mind, when interacting with other people becomes impossible and disgusting. I don't know, maybe such problems just seem relevant to me, but even while I was writing this text, I began to think about all this again.