What was a lesson that the enlightenment taught people?

The enlightenment taught people to think for themselves and to challenge the existing structures that were tyrannical. This is because it heralded an age of reason whereby people begun to question whether the prevailing systems were working for them which led to changes in various spheres

assuming that by westerners you mean americans. that they were mean and controlling and abusive to its peasants.

explanation:

apartheid, (afrikaans: “apartness”) policy that governed relations between south africa's white minority and nonwhite majority and sanctioned racial segregation and political and economic discrimination against nonwhites. people should not get this wrong. i was just answering a question.