“Everything in excess is opposed to nature.”

I have clearly recorded this: for one can learn good lessons also from what has been tried but clearly has not succeeded, when it is clear why it has not succeeded.

Through seven figures come sensations for a man; there is hearing for sounds, sight for the visible, nostril for smell, tongue for pleasant or unpleasant tastes, mouth for speech, body for touch, passages outwards and inwards for hot or cold breath. Through these come knowledge or lack of it.

If you are not your own doctor, you are a fool.

Look well to the spine for the cause of disease.

The chief virtue that language can have is clarity.

I will use treatment to help the sick according to my ability and judgment, but never with a view to injury and wrongdoing. Neither will I administer a poison to anybody when asked to do so, nor will I suggest such a course. Similarly, I will not give to a woman a pessary to cause abortion. I will keep pure and holy both my life and my art.

When doing everything according to indications, although things may not turn out agreeably to indication, we should not change to another while the original appearances remain.

Those diseases which medicines do not cure, iron cures; those which iron cannot cure, fire cures; and those which fire cannot cure, are to be reckoned wholly incurable.

The human soul develops up to the time of death.

Let food be thy medicine and medicine be thy food

A sensible man ought to think about that well being is the best of human blessings, and find out how by his personal thought to derive profit from his sicknesses.

What medicines do not heal, the lance will; what the lance does not heal, fire will.

We must turn to nature itself, to the observations of the body in health and in disease to learn the truth.

All diseases begin in the gut.

Illnesses do not come upon us out of the blue. They are developed from small daily sins against Nature. When enough sins have accumulated, illnesses will suddenly appear.

The dignity of a physician requires that he should look healthy, and as plump as nature intended him to be; for the common crowd consider those who are not of this excellent bodily condition to be unable to take care of themselves.