Why does Professor Janov Pelorat's "Origin Question" require that humankind evolve from lower life forms on a single, unique planet? What are the indications? Are there any counter-indications?

How do the Executive Council on Terminus and the Table on Trantor compare and contrast. How do their presiding officers - Mayor Branno and First Speaker Shandess, respectively - compare and contrast, functionally and personally? How has tradition shaped their destinies?

How does Compor's service as a Second Foundation "Observer" enhance Speaker Gendibal's character? What new aspects does it show? How does Gendibal view the "letter of the law" that excludes Trevize from Second Foundation service?

Why do Gaians differ from humans on all other planets in their attitude toward robots? Are robots right to secretly maintain their role as guardians? What role might they play in Galaxia?

How does ambition play into the resolution of...