Stoicism Hellenistic philosophy, was founded by Zeno of Citium (333-264 B.C.) in the early third century B.C. in ancient Greece. It sought to find a sense of divine justice and de-emphasized emotion and feelings, teaching that both pain and pleasure should be disregarded. Instead, cool-headed reason and logic should be used at all times and self-indulgence denied.
Stoics believed that virtue is to maintain a willpower that should be in accordance with nature. This philosophy holds that self-control and fortitude are means of overcoming destructive emotions.
In addition to Zeno, Stoic philosophers included Epictetus (55 - 135 AD), Marcus Aurelius (121 - 180 AD) and Seneca (4 BC - 65 AD). The philosophical works of Seneca had an important role in the revival of Stoic ideas in the Renaissance.
Philosophy for a Stoic is an active process of constant practice, dialogs, meditation, reflection and training in abstinence, self-control and fortitude.
Justin the Martyr, an early Christian Martyr used stoic philosophy in his First Apology to defend the Christian faith. Drawing upon the stoic reliance on reason, Logos, and the idea in John's gospel that the word, Logos became flesh, he compared Christians to the wise, and sought to defend the faithful from persecution.