The teaching i have found most useful is the following. Which is complementary to the above sutta;
"What do you think, Rahula: What is a mirror for?"
"For reflection, sir."
"In the same way, Rahula, bodily actions, verbal actions, & mental actions are to be done with repeated reflection.
"Whenever you want to do a bodily action, you should reflect on it: 'This bodily action I want to do — would it lead to self-affliction, to the affliction of others, or to both? Would it be an unskillful bodily action, with painful consequences, painful results?' If, on reflection, you know that it would lead to self-affliction, to the affliction of others, or to both; it would be an unskillful bodily action with painful consequences, painful results, then any bodily action of that sort is absolutely unfit for you to do. But if on reflection you know that it would not cause affliction... it would be a skillful bodily action with pleasant consequences, pleasant results, then any bodily action of that sort is fit for you to do.
"While you are doing a bodily action, you should reflect on it: 'This bodily action I am doing — is it leading to self-affliction, to the affliction of others, or to both? Is it an unskillful bodily action, with painful consequences, painful results?' If, on reflection, you know that it is leading to self-affliction, to the affliction of others, or to both... you should give it up. But if on reflection you know that it is not... you may continue with it.
"Having done a bodily action, you should reflect on it: 'This bodily action I have done — did it lead to self-affliction, to the affliction of others, or to both? Was it an unskillful bodily action, with painful consequences, painful results?' If, on reflection, you know that it led to self-affliction, to the affliction of others, or to both; it was an unskillful bodily action with painful consequences, painful results, then you should confess it, reveal it, lay it open to the Teacher or to a knowledgeable companion in the holy life. Having confessed it... you should exercise restraint in the future. But if on reflection you know that it did not lead to affliction... it was a skillful bodily action with pleasant consequences, pleasant results, then you should stay mentally refreshed & joyful, training day & night in skillful mental qualities.
"Whenever you want to do a verbal action, you should reflect on it: ...
"While you are doing a verbal action, you should reflect on it: ...
"Having done a verbal action, you should reflect on it: ...
"Whenever you want to do a mental action, you should reflect on it: ...
"While you are doing a mental action, you should reflect on it: ...
"Having done a mental action, you should reflect on it: ...
"Rahula, all those brahmans & contemplatives in the course of the past who purified their bodily actions, verbal actions, & mental actions, did it through repeated reflection on their bodily actions, verbal actions, & mental actions in just this way.
"All those brahmans & contemplatives in the course of the future who will purify their bodily actions, verbal actions, & mental actions, will do it through repeated reflection on their bodily actions, verbal actions, & mental actions in just this way.
"All those brahmans & contemplatives at present who purify their bodily actions, verbal actions, & mental actions, do it through repeated reflection on their bodily actions, verbal actions, & mental actions in just this way
I think the first thing we should do is to become really, really…. intent on our own welfare. Then every thing else will follow in it's wake.
