In the process it became a rather different version of the philosophy from that taught by Zeno and Chrysippus. Perhaps the most important development was a shift in emphasis, a narrowing of focus. Early and middle Stoicism was a holistic system. It aimed to embrace all knowledge, and its focus was speculative and theoretical. Roman Stoicism, by contrast, was a practical discipline—not an abstract system of thought, but an attitude to life. Partly
