stoicism

/ˈstoʊ.ɪ.sɪz.əm/

noun

  1. The endurance of pain or hardship without the display of feelings and without complaint. "Marcus Aurelius practiced stoicism to govern Rome calmly amid plagues, wars, and political turmoil."
  2. An ancient Greek school of philosophy founded by Zeno of Citium, teaching that virtue is based on knowledge, reason, and living in agreement with nature.