"Human beings are the only creatures who are able to behave irrationally in the name of reason"

This quote recommends that humans have the ability to make use of reason and logic to justify unreasonable habits. Montagu is mentioning that human beings have an unique ability to control and flex the regulations of rationality and logic to match their very own interests or schedules. To put it simply, human beings can use reason as well as logic to reason all sorts of habits that are not always consistent with these principles. According to Montagu, this sets us besides other creatures that act more intuitively or according to their organic shows. Ultimately, Montagu's observation suggests that while factor as well as logic are effective devices, they are not fail-safe as well as can be controlled as well as misused for a range of functions.