Stoicism, an ancient Greek philosophy created in the early 3rd century BCE by Zeno, teaches the practice of self-control and resilience as a way to overcome harmful emotions. The school of thought maintains that moral excellence, the supreme good, is based on wisdom and that the enlightened exist in harmony with the divine Reason that rules nature. This congruent existence involves embracing the moment as it presents itself, not letting oneself to be ruled by the craving for gratification or dread of discomfort.

At its core, Stoic philosophy imparts that outside events are not within our control; we can only manage our answers to them. This mindset promotes grit and emotional equanimity, enabling persons maintain inner calm amidst life's obstacles. The Stoic practice of awareness, or "prosoche," requires perpetual awareness and attention to one’s thoughts and behaviors, confirming they align with logic and moral excellence. Notable Stoic philosophy philosophers such as Marcus Aurelius, Epiktetos, and Lucius Annaeus Seneca have passed down invaluable teachings that still impact current thinking and personal development techniques.

Stoicism's focus on reason and self-regulation gives a practical framework for personal development. By concentrating on what we can manage and embracing what we cannot, followers of Stoicism hold we can reach calm and a fulfilling life. This philosophy’s enduring wisdom provides direction on handling challenges, regulating emotions, and practicing ethical behavior. Through the practice of ethical principles like insight, fortitude, righteousness, and self-restraint, the Stoic way encourages persons to pursue lives of significance and virtue, irrespective of external situations.