In plain words
Only when the students, girls and boys, grow into noble people will the country flourish in plenty. Wherever we go, virtue above all is what counts for us. Those who have virtue are great indeed, wherever they are! Greatness lies in virtue itself, not in wealth.
Keep your sight, speech and hearing in good order
Students! Do not swagger, thinking you are educated. Do not think that being educated is itself greatness.
Having read all learning and grown very discerning, the dull-witted one does not know himself in his mind; however much he studies, whatever his state, the base one cannot give up his vices.
Studying learning over and over yields only argument; he can never attain full Jñāna. Why study and study and study, only to die? One should study the learning that knows no death.
We must enter into full Jñāna. We must nurture perfect virtue. We must keep our sight, our speech and our hearing in good order. Of the five senses given to you, if you control these three above all, the eyes, the ears and the tongue, you will become great. Good sight, good hearing, good words... If you foster these three, there is no God other than you. One who has these three qualities is truly the very embodiment of God! So keep your thoughts good. Keep your sight and your hearing good too. That itself is the fulfilment of the education you have had. When you keep these three, the very foundation of humanness, on the good path, your life itself becomes a Rāmāyaṇa. All the Vedas, Śāstras, Itihāsas and Purāṇas came into being to foster these three.