Hello. You have not informed the speeches to which the question refers, which makes it impossible for it to be answered accurately. However, an extremely common element in the speeches of the Nobel Prize winners are political issues and, mainly, how these issues are flawed and have caused the suffering of a large number of people. It will not be difficult to find this similarity in the speeches to which you have access, it may be that they even criticize the same political issue. In order to answer this question, in this case, it is necessary that you read the dicuses and note which criticism both are pointing out.