Think again:
He was the most significant science fiction writer since H. G. Wells. — Robert Silberberg
Robert Heinlein, as much as any writer while I was growing up, taught me to argue with the excepted version. — Samuel R. Delaney
We perceive down a path marked by his ideas. — Tom Clancy
Oh, Robert SILBERBERG! The EXCEPTED version!! And the Clancy quote appears as ‘a path’ and ‘the path’ on the same page!!! (Yes, the latter is the one that makes sense.)
AGH! We need to return our schools to rote drill and memorization!!