"Altruistic acts" refers to selfless actions that are done for the benefit or well-being of others, without expecting anything in return. Full definition
Even what appears to be the most altruistic act of a good person is alloyed with some degree of self - interest. (religion-online.org)
Kate Douglas suggests that if people get a buzz from altruistic acts, they are not purely altruistic (8 August, p 28). (newscientist.com)
In 2009 the researchers reported that infants younger than 18 months engaged in altruistic acts, such as helping adults reach objects or open cabinet doors. (scientificamerican.com)