Misfortune shows those who are not really friends – Aristotle

There is no great genius without a mixture of madness – Aristotle

A true friend is one soul in two bodies – Aristotle

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 – Aristotle

No one would choose a friendless existence on condition of having all the other things in the world – Aristotle

In all things of nature there is something of the marvelous – Aristotle