I'm not religious, but a particular legend has stuck with me:
> A philanthropist once came to Rabbi Schneur Zalman of Liadi to complain that he felt he was giving charity without sincerity. “Without sincerity? Nonsense!” replied the Rebbe. “There is plenty of sincerity. Perhaps you are not sincere in giving charity, but the poor are very sincere in receiving your charity. Even if you don't mean it, they do!”
> A philanthropist once came to Rabbi Schneur Zalman of Liadi to complain that he felt he was giving charity without sincerity. “Without sincerity? Nonsense!” replied the Rebbe. “There is plenty of sincerity. Perhaps you are not sincere in giving charity, but the poor are very sincere in receiving your charity. Even if you don't mean it, they do!”
[source](https://www.chabad.org/library/article_cdo/aid/1885183/jewis...)