Sri Sri Muralidhara Swamiji
The purpose of all rituals and duties is to please the Lord. Nothing else pleases the Lord as much as the chanting of the Divine names. So, chanting the divine names of the Lord is sufficient.
Though a great marga, in today's world, it is just impossible to follow the Karma marga as prescribed in our Vedas. Nowadays, we find many who speak on stage about the greatness of our Vedas and the need to protect them. None of these speakers is prepared to send his son for Veda Adhyayanam(to study the Vedas) nor will give his daughter in marriage to a Vedic scholar. However, our Sanatana dharma protects even these people who only talk about protecting it."