अकर्तव्यं न कर्तव्यं प्राणैः कण्ठगतैरपि । कर्तव्यमेव कर्तव्यं प्राणैः कण्ठगतैरपि ॥

Whatever is not right to be done, must never be done even on pain of death; and what is right to do, must be done even if one should die for the same.