Can somebody help Me?!

Is the most common topic that all societies share.

Tu es venalicius; tu servos in foro (vendo,vendis,vendit)

The first step in preparing for a speech is to choose a topic. list 6 different possible speech topics that interest you and that would be appropriate for an audience of your peers. 3 of the topics should be informative, and 3 should be persuasive. (site 1)