The proof that you know something is that you are able to teach it.
Aristotle
About the Author
Author Profession: Aristotle was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Lyceum, the Peripatetic school of philosophy, and the Aristotelian tradition. Wikipedia
Nationality: Greek
Born: 385 BC, Stagira, Greece
Died: 323 BC, Chalcis, Greece
