Aristotle

“The duty of rhetoric is to deal with such matters as we deliberate upon without arts or systems to guide us, in the hearing of persons who cannot take in at a glance a complicated argument or follow a long chain of reasoning.”

“In making a speech one must study three points: first, the means of producing persuasion; second, the language; third the proper arrangement of the various parts of the speech.”

“We must not listen to those who advise us 'being men to think human thoughts, and being mortal to think mortal thoughts' but must put on immortality as much as possible and strain every nerve to live according to that best part of us, which, being small in bulk, yet much more in its power and honour surpasses all else.”

“The roots of education are bitter, but the fruit is sweet.”

“A constitution is the arrangement of magistracies in a state.”

“Fear is pain arising from the anticipation of evil.”

“I have gained this by philosophy … I do without being ordered what some are constrained to do by their fear of the law.”

“Neither should we forget the mean, which at the present day is lost sight of in perverted forms of government; for many practices which appear to be democratical are the ruin of democracies, and many which appear to be oligarchical are the ruin of oligarchies. Those who think that all virtue is to be found in their own party principles push matters to extremes; they do not consider that disproportion destroys a state.”

“Courage is a mean with regard to fear and confidence.”

“Happiness is the meaning and the purpose of life, the whole aim and end of human existence.”

“My best friend is the man who in wishing me well wishes it for my sake.”

“He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god.”

“The eyes of some persons are large, others small, and others of a moderate size; the last-mentioned are the best. And some eyes are projecting, some deep-set, and some moderate, and those which are deep-set have the most acute vision in all animals; the middle position is a sign of the best disposition.”

“What is a friend? A single soul dwelling in two bodies.”

“The state comes into existence for the sake of life and continues to exist for the sake of good life.”

“Homer has taught all other poets the art of telling lies skillfully.”

“You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.”

“He who has overcome his fears will truly be free.”

“Democracy is when the indigent, and not the men of property, are the rulers.”

“Man is by nature a political animal.”