Take _any_ Stoicism philosopher, they are absolutely identical, and as far as I understood your request, any of them must be the perfect fit. Seneca, which is s

Take _any_ Stoicism philosopher, they are absolutely identical, and as far as I understood your request, any of them must be the perfect fit. Seneca, which is suggested in one of previous comment, worked great for me as a start of learning about Stoicism.