I'm certainly not rich or powerful, but I have found Stoicism to be extremely helpful. It is hard to always bear it in mind when in times of stress, but when I can, it really does help to focus on the idea that what matters is not my external circumstances, but my own actions and thoughts. It reframes things and helps me to feel better about unpleasant situations I might find myself in.
I also would say that I disagree with the author in his assessment of Stoic thought. He asserts that with millennia of experience, we have learned that we can effect change on the world. I believe that if anything the exact opposite is true. Some men have more power to change the world than others, but for most of us we can't do a damn thing. For example, if I'm unhappy with the actions of the US government, I can write to my representatives asking them to change things, and I can vote for someone else next election (or possibly participate in a recall effort). But that's all I can do, and (speaking from experience) those don't accomplish anything. I still do those things because they are my duty, but I'm realistic about the fact that they aren't going to change a thing and I don't stress out.
I also would say that I disagree with the author in his assessment of Stoic thought. He asserts that with millennia of experience, we have learned that we can effect change on the world. I believe that if anything the exact opposite is true. Some men have more power to change the world than others, but for most of us we can't do a damn thing. For example, if I'm unhappy with the actions of the US government, I can write to my representatives asking them to change things, and I can vote for someone else next election (or possibly participate in a recall effort). But that's all I can do, and (speaking from experience) those don't accomplish anything. I still do those things because they are my duty, but I'm realistic about the fact that they aren't going to change a thing and I don't stress out.