There is no need for quarrel or dispute with anybody. Give your message and leave others to their own thoughts. " — Truth alone triumphs, not falsehood." — Why then fight?
. . . Combine seriousness with childlike naïveté. Live in harmony with all. Give up all idea of egoism, and entertain no sectarian views. Useless wrangling is a great sin.
The Complete Works of Swami Vivekananda/Volume 6/Epistles - Second Series/LXXV Shashi