Como é que se diz isto em Inglês (RU)? "We shouldn't expect returns from others when we help them. We should rather just think we are figuring out what kind of person he/she is." How can I say this naturally?

See a translation

The 2 ways you can say it is:

You own me nothing

I don't expect anything in return


example
1) If you helped someone you and that person offered you something then you can say "thank you but I don't expect anything in return"...or... "I don't need anything in return".

2) If you helped someone and they say 'I own you my life' or 'I own you something' then you can can say "No, you own me nothing" or "you own me nothing because I didn't help you to get something in return"

I hope it helped you (if you need more explanation you can ask me)