Aristotle — Greek Philosopher

Aristotle was a Greek philosopher and scientist born in the Macedonian city of Stagira, Chalkidice, on the northern periphery of Classical Greece... (wikipedia)

It is the mark of an educated mind to be able to entertain a thought without accepting it.
The aim of art is to represent not the outward appearance of things, but their inward significance.
My best friend is the man who in wishing me well wishes it for my sake.
Anybody can become angry - that is easy, but to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way - that is not within everybody's power and is not easy.
Excellence is an art won by training and habituation. We do not act rightly because we have virtue or excellence, but we rather have those because we have acted rightly. We are what we repeatedly do. Excellence, then, is not an act but a habit.