Hippocrates is above all famous for his Hippocratic oath which is recited by graduating medical students in 
many medical schools. Part of the oath contains the ethical obligation to keep confidential any information 
obtained from a patient and includes the following passage:

Whatever, in connection with my professional practice, or not in connection with it, I see or hear, in the life 
of men, which ought not to be spoken of abroad, I will not divulge, as reckoning that all such should be 
kept secret.