Corporal punishment is as humiliating for him who gives it as for him who receives it; it is ineffective besides. Neither shame nor physical pain have any other effect than a hardening one. – Ellen Key
It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients. – Ivan Pavlov
