"The animal nature of man is a combination of habits. Therefore, by watching oneself, it is possible to create certain good habits. Finally, you will kindle a little flame in your hearts and then this long-torturing process of practising good habits may, in one moment of illumination, become a joyous part of your enlightened consciousnesses. And once more, I ask you to be honest with your own selves. Lying to oneself is the most terrible sin. It injures the consciousness and leads to so-called death of the spirit."
January 1, 1970
https://en.wikiquote.org/wiki/Enlightenment_(spiritual)