Aristotle

Aristotle
Aristotle was a Greek philosopher and scientist born in the city of Stagira, Chalkidice, on the northern periphery of Classical Greece. His father, Nicomachus, died when Aristotle was a child, whereafter Proxenus of Atarneus became his guardian. At eighteen, he joined Plato's Academy in Athens and remained there until the age of thirty-seven. His writings cover many subjects – including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theater, music, rhetoric, linguistics, politics and government – and constitute the first comprehensive system...
NationalityGreek
ProfessionPhilosopher
One may go wrong in many different ways, but right only in one, which is why it is easy to fail and difficult to succeed.
No science ever defends its first principles.
Justice is Equality...but equality of what?
All flatterers are mercenary, and all low-minded men are flatterers.
Masculine republics give way to feminine democracies, and feminine democracies give way to tyranny.
Anybody can get hit over the head.
By 'life,' we mean a thing that can nourish itself and grow and decay.
Melancholy men of all others are most witty, which causeth many times a divine ravishment, and a kinde of Enthusiasmus, which stirreth them up to bee excellent Philosophers, Poets, Prophets, etc.
Authority is no source for Truth.
It will contribute towards one's object, who wishes to acquire a facility in the gaining of knowledge, to doubt judiciously.
...one Greek city state had a fundamental law: anyone proposing revisions to the constitution did so with a noose around his neck. If his proposal lost he was instantly hanged.
Excellence or virtue is a settled disposition of the mind that determines our choice of actions and emotions and consists essentially in observing the mean relative to us ... a mean between two vices, that which depends on excess and that which depends on defect.
One kind of justice is that which is manifested in distributions of honour or money or the other things that fall to be divided among those who have a share in the constitution ... and another kind is that which plays a rectifying part in transactions.
The ridiculous is produced by any defect that is unattended by pain, or fatal consequences; thus, an ugly and deformed countenance does not fail to cause laughter, if it is not occasioned by pain.