Abu Hurayrah radiyAllahu anhu narrated that the Messenger of Allah sal Allahu alayhi wa sallam said:
Whoever believes in Allah and the Last Day, should say good or remain silent. Whoever believes in Allah and the Last Day, should be kind to his neighbor. And whoever believes in Allah and the Last Day, should be generous to his guest.
[Saheeh Bukhari and Muslim]
I love this.. subhanAllah a wonderful reminder