Argue with someone who gathered evidence scientifically to demonstrate that we really, really don't know what we're talking about when it comes to the human soul:
https://en.wikipedia.org/wiki/Twenty_Cases_Suggestive_of_Rei...
EDIT: Downvote all you want, materialists, but reincarnation is the spanner in the works nobody wants to confront ..
Reincarnation just doesn't make sense when you consider the numbers. Why are more people being born today than yesterday?
If you believe in reincarnation, for some reason brand new souls are spawning into existence. Why? How does reincarnation work for them?