Full Idea
In Greek mythology only a hero like Hercules could hope to go to heaven (by becoming a god himself).
Gist of Idea
In Greek mythology only heroes can go to heaven
Source
A.C. Grayling (What is Good? [2003], Ch.4)
Book Reference
Grayling,A.C.: 'What is Good? The Best Way to Live' [Phoenix 2003], p.82
A Reaction
This illustrates Nietsche's 'inversion of morality' most clearly, because Christianity says that the person most likely to go to heaven is the humblest person.