Webster Dictionary, humanism is " ... a doctrine, attitude, or way of life centered on human interests or values; especially: a philosophy that usually rejects supernaturalism and stresses an individual's dignity and worth and capacity for self-realization through reason". History Predecessors Traces of humanism can be found in ancient Greek philosophy. Pre-Socratic philosophers were the first Western philosophers to attempt to explain the world in terms of human reason and natural law without relying on myth, tradition, or religion. Protagoras, who lived in Athens , put forward some fundamental humanist ideas, although only fragments of his work survive. He made one of the first agnostic statements; according to one fragment: "About the gods I am able to know neither that they exist nor that they do not exist nor of what kind they are in form: for many things prevent me for knowing this, its obscurity and the brevity of man's life". (80B4 DK) Socrates spoke of the need to "know thyself"; his thought changed the focus of then-contemporary philosophy from nature to humans and their well-being. Socrates, a theist who was executed for atheism, investigated the nature of morality by reasoning. Aristotle (384–322 BCE) taught rationalism and a system of ethics based on human nature that also parallels humanist thought. In the third century BCE, Epicurus developed an influential, human-centered philosophy that focused on achieving eudaimonia. Epicureans continued Democritus' atomist theory—a materialistic theory that suggests the fundamental unit of the universe is an indivisible atom. Human happiness, living well, friendship, and the avoidance of excesses were the key ingredients of Epicurean philosophy that flourished in and beyond the post-Hellenic world. It is a repeated view among scholars that the humanistic features of ancient Greek thought are the roots of humanism 2,000 years later. Arabic translations of Ancient Greek literature during the Abbasid Caliphate in the eighth and ninth centuries influenced Islamic philosophers. Many medieval Muslim thinkers pursued humanistic, rational, and scientific discourse in their search for knowledge, meaning, and values. A wide range of Islamic writings on love, poetry, history, and philosophical theology show medieval Islamic thought was open to humanistic ideas of individualism, occasional secularism, skepticism, liberalism, and free speech; schools were established at Baghdad, Basra and Isfahan. Renaissance The intellectual movement later known as Renaissance humanism first appeared in Italy and has greatly influenced both contemporaneous and modern Western culture. Renaissance humanism emerged in Italy alongside a