With a rich history to choose from it should be academic (LOL) to collect great Greek quotes.

The first Batch is from Plato:

Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination, and charm and gaiety to life and to everything.
Plato

Wise men speak because they have something to say; Fools because they have to say something. – Plato

Wise men speak because they have something to say; Fools because they have to say something.
Plato

The Giants of Philosophy – Plato V. 1

We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.
Plato

The direction in which education starts a man will determine his future in life.
Plato

Hippocrates:
Wherever the art of medicine is loved, there is also a love of humanity.
Hippocrates

It is more important to know what sort of person has a disease than to know what sort of disease a person has.
Hippocrates

Greek Poetry

Healing is a matter of time, but it is sometimes also a matter of opportunity.
Hippocrates

Health, Time, Matter Make a habit of two things: to help; or at least to do no harm. – Hippocrates

Make a habit of two things: to help; or at least to do no harm.
Hippocrates

Natural forces within us are the true healers of disease.
Hippocrates

Let food be thy medicine and medicine be thy food.
Hippocrates

Aristotle and Others:

Love is composed of a single soul inhabiting two bodies.
Aristotle

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

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

The art of living well and the art of dying well are one. – Epicurus

The greater the difficulty, the more the glory in surmounting it. – Epicurus

Painting is silent poetry, and poetry is painting that speaks. – Plutarch