Jealousy can destroy oneself!
Once, when Karna realized hat Arjuna was superior to him in archery, he approached Guru Drona and requested him to teach him how to be blessed with Brahmastra. Guru Drona declined saying he can't teach any but a learned scholar rooted in dhrma or a kshatriya who had purified himself by dhrma and dhyana. Disappointed Karna went to the Mahendra parvatha where sage Parashurama was staying. He deceived Parashurama by saying that he was a brahmana and became his disciple. From him he obtained instruction in archery and the use of many astras. Karna chose to approach Guru Drona for Brahmastra not for peace, but to prove his strength over Arjuna. His choice was plagued by likes and dislikes like jealousy. Where he had a choice to appreciate Arjuna, which he could not because of his likes and dislikes of not accepting others as more knowledgeable. He deceived Parashurama, because he wanted to learn something special by which he could prove that h...