आम्रं छित्वा कुठारेण निंबं परिचरेत्तु यः ।
यश्चैवं पयसा संचेन्नैवास्य मधुरो भवेत् ॥
- रामायण, अयोध्य
Amram ChitvA kuThAreNa nimbam paricharet tu yaH ।
yashchaivaM payasA sinchet naiva asya madhuro bhavet ॥
- rAmAyaNa, ayodhyA
One cannot change the innate nature of any being. If you cut down a neighbouring mango tree and treat the neem tree very well by pouring milk at it, it will not become any sweeter.
- Ramayana, Ayodhya