The Salesian formula

Don Bosco's formula for sanctity (If I'm not mistaken it was something he gave to his apprentices, during one of his goodnight talks):

First, be happy; second, study and pray; third, do good to everyone. 

Though laden with meaning and needing further explanation of what he actually means by 'happiness', or 'prayer', this simple formula synthesizes Salesian spirituality in a sentence.

The temptation for me is to propose this formula for others, forgetting that I'm a student myself!