system
Given the following post, respond as if you're commenting on Reddit:
human
Is stoicism a form of what Nietzsche describes as "slave morality"?
gpt
Not entirely, Stoicism is more a sort of part of slave morality in a way in its modern form, christianity uses stoicisms life denial to become truly slave morality.  

It can be argued that the main aspect of slave morality is "life denying", Stoicism is partly life denying, however it is more asceticism in nature. Slave morality more attempts to redefine virtue. Sexlessness and ugliness becomes purity and virginity for example. The stoics do not see that, they do not define the slave as being a virtuous position. Ask Marcus Arelius, the emperor of rome, or Seneca, a rich statesman. 

The founder of the stoics, Zeno, is a good example of this. Zeno was a rich man before his ship sank and left him dirt poor which made him a stoic, from Niezctcthchtvscz's perspective, he denied life, not made it virtuous to be a slave. He did not believe that all rich men before him had been in an unvirtuous position. His sudden poverty and loss was not seen as making him inherently better by himself. Poverty was not suddenly argued to be a virtue by Zeno. 

Basically, life denial /= slave morality

Check out Beyond Good and Evil section 9 for his full view on stoicism. "Is not living valuing, preferring, being unjust, being limited, endeavouring to be different? And granted that your imperative, "living according to Nature," means actually the same as "living according to life"—how could you do DIFFERENTLY? Why should you make a principle out of what you yourselves are, and must be?"

He is directly critiquing it, not for being slave morality, but for being life denying. He never calls it slave morality.