Hippocrates
To do nothing is sometimes a good remedy.
To really know is science; to merely believe you know is ignorance.
Walking is man's best medicine.
There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance.
Everyone has a doctor in him or her; we just have to help it in its work. The natural healing force within each one of us is the greatest force in getting well. Our food should be our medicine. Our medicine should be our food. But to eat when you are sick, is to feed your sickness.