There are certain essential truths which you should bring to mind ten, twenty, thirty times a day

"There are certain essential truths which you should bring to mind ten, twenty, thirty times a day. If you fail to discipline yourself in this way you will not progress. When you get carried away and do things that are not very virtuous or noble – and which you later regret – it is because you have forgotten the truths and laws which would have enabled you to triumph over your weaknesses.
You must recognize how useful repetition is. After all, there are so many things you consider it normal to repeat! Every day you agree to eat and drink several times, to sleep, breathe… or do the same foolish things! But when you hear someone reiterating truths that can save you, you find it intolerable. Is this intelligent?"