"O what a lean cow! it is not fit to be killed: give it fodder until it gets fat."

"Leeches should be kept a day before applying them. They should be squeezed to make them eject the contents of their stomachs."

"The best way to learn is to teach."

"The physician must be a man of courage, for courage is necessary in the face of death."

"The best way to keep the body healthy is to keep the mind healthy."