Ask HN: What do you read to quench your thirst for meaning or curiosity?

I have been reading a lot of Paul Graham's essays. They make me think. I learn and adopt to the wise ideas he lays out in a lot of influential articles. They almost always elicit a sense of wonder.

I also came across Paul Buchheit's piece called 'The Technology' (http://paulbuchheit.blogspot.com/2014/07/the-technology.html). It was a fascinating read too and when I finished reading it, I left with a sense of having learnt something meaningful.

I am curious to know if that resonates with HN crowd too. What else do you all read that imprints a deep sense of purpose, meaning or value. I really do not mean 'self-help' category.