14.16 कर्मणः of action, सुकृतस्य (of) good, आहुः (they) say, सात्त्विकम् Sattvic, निर्मलम् pure, फलम् the fruit, रजसः of Rajas, तु verily, फलम् the fruit, दुःखम् pain, अज्ञानम् ignorance, तमसः of inertia, फलम् the fruit.Commentary: Good action Sattvic action. The fruit of good action is both happiness and,knowledge.They The wise.Rajas means Rajasic action as this verse deals with action. The fruit of Rajasic action is bitter. Rajasic action brings pain, disappointment and dissatisfaction. Rajasic activity leads to greed. When the Rajasic man tries to gratify his original desires, new desires crop up. This opens the door to greed.Tamas Tamasic action, unrighteous deeds or sin (Adharma). There is no knowledge within and no foresight.