Aristotle

Quality is not an act, it is a habit.

Any form of authenticity is better than none.

The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.

The soul never thinks without a picture.

Man is by nature a political animal.

Educating the mind without educating the heart is no education at all.

Whosoever is delighted in solitude is either a wild beast or a god.

Pleasure in the job puts perfection in the work.

The greatest thing by far is to have a command of metaphor. This alone cannot be imparted by another; it is the mark of genius, for to make good metaphors implies an eye for resemblances.

At his best, man is the noblest of all animals; separated from law and justice he is the worst.

For the things we have to learn before we can do them, we learn by doing them.

The law is reason free from passion.

One swallow does not make a summer.

All men by nature desire knowledge.

Nature, as we say, does nothing without some purpose; and for the purpose she works it is best fitted.

In wildness is the preservation of the world.

The investigation of nature is necessarily a search for purposes.

Animals are divided into those that have blood and those that have no blood.

The eye is the window of the soul.

Time is the measure of change.