There is a template set up so use the default editor rather than the Divi Builder. Click the + icon in the top left to show the blocks you can insert, which are typically Paragraph, Image and Video.

Here’s what to do with the Post settings which are probably on your right side menu:

• Tick the category set for “Noam Chomsky” (posts in that category show up on that page)
• Tags are set to show on the front end so use them or tell me to lose them.
• Set the featured image if you want to use one.
• Write a custom excerpt if you want – or it will grab the existing text.
• Authors are not currently visible.