They deceive themselves…

Don’t imitate those who deceive themselves by saying, ‘I will sin and then go to confession.’ How do you know that you will have time to make your confession? Isn’t it madness to wound yourself in the hope that a doctor will be found to heal the wound?”
–Saint John Bosco (1815-1888)

Never boast of what you know…

Never boast of what you know. The more one knows, the more he realizes how ignorant he is. Socrates used to say: Hoc unum scio me nihi scire. [I know only one thing: that I know nothing.] So be humble; first, by being convinced that you know nothing; secondly, by never using your knowledge for evil purposes; finally, by knowing what Jesus Christ teaches us – to forgive injuries received, to forgive our enemies.
–Saint John Bosco (1815-1888)