But medicine has long had all its means to hand, and has discovered both a principle and a method, through which the discoveries made during a long period are many and excellent, while full discovery will be made, if the inquirer be competent, conduct his researches with knowledge of the discoveries already made, and make them his starting-point. But anyone who, casting aside and rejecting all these means, attempts to conduct research in any other way or after another fashion, and asserts that he has found out anything, is and has been victim of deception.
HippocratesWhoever wishes to investigate medicine should proceed thus: In the first place, consider the seasons of the year and what effect each of them produces.
HippocratesIt's far more important to know what person the disease has than what disease the person has.
Hippocrates