Justified True Belief

(●) Socrates was an Athenian philosopher who is widely regarded as one of the founders of Western philosophy. He wrote no philosophical texts himself; instead, his ideas and methods are known through the works of his students, especially Plato and Xenophon, as well as the playwright Aristophanes. Socrates is famous for his method of questioning (the Socratic method or elenchus), which sought to expose contradictions in his interlocutors’ beliefs and to stimulate critical thinking and self-examination. He focused on ethical questions and the pursuit of virtue, famously claiming that he knew nothing except his own ignorance. Socrates was tried and executed by the city of Athens on charges of impiety and corrupting the youth, choosing to die rather than renounce his philosophical mission.

(Q) "The unexamined life is not worth living." + Source: Plato, Apology 38a

(Q) "I know that I know nothing." + Source: Plato, Apology 21d (paraphrased; the exact phrase is "I am wiser than this man; it is likely that neither of us knows anything worthwhile, but he thinks he knows something when he does not, whereas when I do not know, neither do I think I know.")