Aristotle

Pleasure in the job puts perfection in the work.

The virtue of justice consists in moderation, as regulated by wisdom.

Excellence, then, is a state concerned with choice, lying in a mean, relative to us, this being determined by reason and in the way in which the man of practical wisdom would determine it.

Piety requires us to honor truth above our friends.

The least initial deviation from the truth is multiplied later a thousandfold.

Plato is dear to me, but dearer still is truth.

Whether if soul did not exist time would exist or not, is a question that may fairly be asked for if there cannot be someone to count there cannot be anything that can be counted, so that evidently there cannot be number for number is either what has been, or what can be, counted.

For one swallow does not make a summer, nor does one day and so too one day, or a short time, does not make a man blessed and happy.

We praise a man who feels angry on the right grounds and against the right persons and also in the right manner at the right moment and for the right length of time.

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.

A sense is what has the power of receiving into itself the sensible forms of things without the matter, in the way in which a piece of wax takes on the impress of a signet-ring without the iron or gold.

In a democracy the poor will have more power than the rich, because there are more of them, and the will of the majority is supreme.

What it lies in our power to do, it lies in our power not to do.

We make war that we may live in peace.

He who can be, and therefore is, another's, and he who participates in reason enough to apprehend, but not to have, is a slave by nature.

The moral virtues, then, are produced in us neither by nature nor against nature. Nature, indeed, prepares in us the ground for their reception, but their complete formation is the product of habit.

For as the eyes of bats are to the blaze of day, so is the reason in our soul to the things which are by nature most evident of all.

Nature does nothing in vain.

Man is by nature a political animal.

All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion, desire.