Hippocrates

A wise man should consider that health is the greatest of human blessings, and learn how by his own thought to derive benefit from his illnesses.

Cure sometimes, treat often, comfort always.

Everything in excess is opposed to nature.

Extreme remedies are very appropriate for extreme diseases.

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

If we could give every individual the right amount of nourishment and exercise, not too little and not too much, we would have found the safest way to health.

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

It's far more important to know what person the disease has than what disease the person has.

Keep a watch also on the faults of the patients, which often make them lie about the taking of things prescribed.

Life is short, the art long.

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

Many admire, few know.

Natural forces within us are the true healers of disease.

Prayer indeed is good, but while calling on the gods a man should himself lend a hand.

Science is the father of knowledge, but opinion breeds ignorance.

The art is long, life is short.

The chief virtue that language can have is clearness, and nothing detracts from it so much as the use of unfamiliar words.

The life so short, the craft so long to learn.

There are in fact two things, science and opinion; the former begets knowledge, the later ignorance.