Never allow sleep to close your eyelids, after you went to bed,
Until you have examined all your actions of the day by your reason.
In what have I done wrong? What have I done? What have I omitted that I ought to have done?
If in this examination you find that you have done wrong, reprove yourself severely for it;
And if you have done any good, rejoice.
Practise thoroughly all these things; meditate on them well; you ought to love them with all your heart.
It is those that will put you in the way of divine virtue. (The Golden Verses of Pythagoras)