Is the Buddhist path one of 'selfless offering' or 'inner kindness'?

Just expanding on this answer is the Buddhist path one of 'selfless offering of oneself and efforts' or of 'inner kindness' i.e. kindness to oneself. Or is it both or neither. I've come across both themes and both seem right but to me they contradict. Of course Buddhist is about many other things including outer kindness (to all beings) but right now I'm interested in these two aspects. Many thanks as always