Take up everyone with sympathy, whether he believes in Shri Ramakrishna or not. If anybody comes to you for vain dispute, politely withdraw yourselves. ... You must express your sympathy with people of all sects. When these cardinal virtues will be manifested in you, then only you will be able to work with great energy. Otherwise, mere taking the name of the Guru will not do.
- Swami Vivekananda
11th April, 1895.The Complete Works of Swami Vivekananda/Volume 6/Epistles - Second Series/LXIII Shashi