The only thing I care about is whether a monkey will turn out a property I can publish. I don't have any love for them. Never have. I don't really li… - Harry Harlow

[Harlow] kept this going to the point where it was clear to many people that the work was really violating ordinary sensibilities, that anybody with respect for life or people would find this offensive. It's as if he sat down and said, 'I'm only going to be around another ten years. What I'd like to do, then, is leave a great big mess behind.' If that was his aim, he did a perfect job.

(W)hereas Milgram’s findings need constant reiteration in every generation, Harlow’s research no longer surprises us. One might say that its very success has made teaching it unnecessary: No one would argue against Harlow’s findings, as many students always want to do with Milgram’s.

In the first place I have an enormous regard for common sense. Any time we discover some great thing and it contradicts common sense, we better go back to the laboratory and check it.