Ibn Sina (Avicenna)

Anxiety depletes the spirit and weakens the body.

The art of medicine consists of amusing the patient while nature cures the disease.

Knowledge is the life of the mind.

Balance the four humors: blood, phlegm, yellow bile, black bile.

The physician's word should be as strong as his prescription.

Life is short, but the art of medicine is long.

The greatest medicine is to teach people how not to need it.

Pain is inevitable, but suffering is optional in treatment.

The soul's health depends on the body's harmony.

Experiment is the best teacher in medicine.

Wisdom in medicine comes from experience, not books alone.

The heart is the seat of the soul and health.

To cure the body, heal the spirit first.

Nature is the best physician.

The mind influences the body more than we know.

In illness, hope is the companion of life.

The doctor's greatest tool is his observation.

True knowledge in medicine is knowing when not to act.

The end of life is the beginning of eternity; prepare the body well.

Medicine bridges the gap between philosophy and practice.