To be honest I haven't read too many of his books yet, I do plan to take a university course on him this fall though. This passage just resonated with me too much that I have to post it anytime a discussion about Stoicism comes up. There are many Nietzsche classics that you could read, for example I own this copy myself which contains several of his books.

https://www.amazon.com/Writings-Nietzsche-Modern-Library-Cla...