Example Sentences:

Ramayana:  Despite his arrogance, Ravana knew that certain principles in the universe were immutable — and the blessings and the curses of the gods were one such thing.

Mahabharata:  Shakuni’s brahmana friend, Kanaka, told Dhritarashtra that no principle was immutable except the principle that all human beings need to pursue their own survival, prosperity and pleasure. 

Bhagavad-gita:  By stressing that the soul is immutable, the Bhagavad-gita conveys to Arjuna that bodily destruction is neither final nor fatal.