Is it possible for people to actually be selfless? It seems that in many cases where someone is being kind, they are actually performing in a manner that will benefit them. Either the recipient of the kindness will reciprocate, or the act of kindness itself is deemed commendable. Therefore, the one who offered the kindness still benefits personally from their action.
A child shares a toy in the same way. Even with the heroic act of martyrdom, the possibility of knowing one could become a martyr may be uplifting. It seems that every "selfless" act, in some way, may benefit the one being "selfless".
In light of those observations, is selflessness truly possible? What does philosophy have to say about this question?