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

Idleness and lack of occupation tend - nay are dragged - towards evil.

The human body contains blood, phlegm, yellow bile and black bile. These are the things that make up its constitution and cause its pain and health. Health is primarily that state in which these constituent substances are in the correct proportion to each other, both in strength and quantity, and are well mixed.

Everything in excess is opposed to nature.

Into whatsoever houses I enter, I will enter to help the sick, and I will abstain from all intentional wrong-doing and harm, especially from abusing the bodies of man or woman, bond or free. And whatsoever I shall see or hear in the course of my profession, as well as outside my profession in my intercourse with men, if it be what should not be published abroad, I will never divulge, holding such things to be holy secrets.

Natural forces within us are the true healers of disease.

Rest as soon as there is pain.