By reading such resources and articles, I learned from the mistakes that the authors painfully learned themselves or observed in their lives. Putting what I learned from them into practice would save me so much time and money, by not repeating those mistakes or at least minimize them. They are my mentors across different space and time.
I got really better at living life by learning from other people's experiences. PG really knows which ones would I value more. That's why I like PG's essays.