On page 5 of the pamphlet, sewall writes, "what louder cry can there be made of that celebrated warning, caveat emptor! " what is the effect of the latin phrase, "caveat emptor"? it's a warning of the dire punishment awaiting those who buy slaves. it's a reminder of what happened when slavery was introduced in canaan. it's a warning that it is impossible to predict the true value of a slave. it's a reminder of what happened when slavery was introduced in the roman empire.