Hippocrates

To eat when you are sick, is to feed your sickness.

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

As to diseases, make a habit of two things — to help, or at least, to do no harm.

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

Before you heal someone, ask him if he's willing to give up the things that make him sick.

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.

That which is used - develops. That which is not used wastes away.

Cure sometimes, treat often and comfort always.

To do nothing is sometimes a good remedy.

Conclusions which are merely verbal cannot bear fruit, only those do which are based on demonstrated fact. For affirmation and talk are deceptive and treacherous. Wherefore one must hold fast to facts in generalizations also, and occupy oneself with facts persistently, if one is to acquire that ready and infallible habit which we call 'the art of medicine'.

If someone wishes for good health, one must first ask oneself if he is ready to do away with the reasons for his illness. Only then is it possible to help him.

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.

Everyone has a doctor in him or her; we just have to help it in its work.

Foolish the doctor who despises the knowledge acquired by the ancients.

Positive health requires a knowledge of man's primary constitution and of the powers of various foods, both those natural to them and those resulting from human skill. But eating alone is not enough for health. There must also be exercise, of which the effects must likewise be known. The combination of these two things makes regimen, when proper attention is given to the season of the year, the changes of the wind, the age of the individual, and the situation of his home.

Nature acts without masters.

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