The birthplace of dharma is the heart. What emanates from the heart as a pure idea, when translated into action will be called dharma. (SSB 1973, p. 208)

If you investigate carefully about the birthplace of the sense pleasures, you will find that they have their origin in sorrow only. That is why every sense pleasure carries with it the string of sorrow. The pleasure derived from the sense is momentary and ultimately ends up in grief only. (ICS , p. 48)