“Objective judgment, now at this very moment. Unselfish action, now at this very moment. Willing acceptance—now at this very moment—of all external events. That’s all you need.” -Marcus Aurelius, Meditations
Pierre Hadot in his book, “The Inner Citadel” discusses in detail the three most important disciplines of Stoicism. They are Perception, Action and Will. Here’s a cheat sheet…
Perceive things as they actually are. Not as you want them to be. Maintain absolute objectivity of thought.
Act based on your clear perceptions and in accordance with nature. Remember that we were made for others, not ourselves.
Will your actions into being regardless of obstacles. Focus on what you can control and ignore the rest.