“Healing is a matter of time, but it is sometimes also a matter of opportunity. However, knowing this, one must attend to medical practice not primarily to plausible theories, but to experience combined with reason. For a theory is a composite memory of things apprehended with sense perception.”
More from Hippocrates
“Declare the past, diagnose the present, foretell the future.”
“There are in fact two things, science and opinion; the former begets knowledge, the latter…”
“Those things which are sacred, are to be imparted only to sacred persons; and it is not…”
“A natural talent is required; for, when Nature opposes, everything else is in vain; but…”