All disease begins in the gut.

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hear in the course of my profession, as well as outside my profession in my intercourse with men, if it be what should not be published abroad, I will never divulge, holding such things to be holy secrets.

For extreme illnesses extreme treatments are most fitting.

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

The human soul develops up to the time of death.

Old people have fewer diseases than the young, but their diseases never leave them.