Aristotle

Aris-totally Wicked
Whoa, this guy did pretty much everything. A Greek philosopher and scientist, born in the past, had a father call Nichomachus who died when he was very young, then had a son named Nichomachus, studied at Plato's Academy for 19 years from the age of 18, taught Alexander the Great and continued the trend started by Socrates of philosophers trolling Athens because they know that if you kill them, it only makes them stronger.

Theories:
He is responsible for that which we modern day humans call 'Virtue Ethics', a character centred approach based not around intentions or outcome, in an event, but whether or not you are a good person.

Wider Reading

 * Here is the Harry Hiker quiz for Aristotle in general

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