Jealousy is both reasonable and belongs to reasonable men, while envy is base and belongs to the base, for the one makes himself get good things by jealousy, while the other does not allow his neighbour to have them through envy – Aristotle

The one exclusive sign of thorough knowledge is the power of teaching – Aristotle

A friend to all is a friend to none – Aristotle

A tyrant must put on the appearance of uncommon devotion to religion. Subjects are less apprehensive of illegal treatment from a ruler whom they consider god-fearing and pious. On the other hand, they do less easily move against him, believing that he has the gods on his side – Aristotle

Those that know, do. Those that understand, teach – Aristotle

Suffering becomes beautiful when anyone bears great calamities with cheerfulness, not through insensibility but through greatness of mind – Aristotle