Which is the right path for man to choose for himself? Whatever is harmonious for the one who does it, and harmonious for mankind.
Be as careful with a minor mitzvah as with a major one, for you do not know the rewards of the mitzvot. Consider the cost of a mitzvah against its rewards, and the rewards of a transgression against its cost.
Contemplate three things, and you will not come to the hands of transgression: Know what is above from you: a seeing eye, a listening ear, and all your deeds being inscribed in a book.
Source: Rabb Yehuda Ha Nassi - Pirke Avot 2:1
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