April 6

We know that all the falsehoods spread about Christ and His apostles and all the books written against Him, only led the people to inquire into His doctrine; then, having seen the beauty and inhaled the fragrance, they walked evermore amidst the roses and the fruits of that celestial garden.

Therefore, I say unto you, spread the Divine Truth with all your might that men’s intelligence may become enlightened; this is the best answer to those who slander. I do not wish to speak of those people nor to say anything ill of them—only to tell you that slander is of no importance!

Clouds may veil the sun, but, be they never so dense, his rays will penetrate! Nothing can prevent the radiance of the sun descending to warm and vivify the Divine Garden. Nothing can prevent the fall of the rain from Heaven.  Nothing can prevent the fulfilment of the Word of God! 

Therefore, when you see books and papers written against the Revelation, be not distressed, but take comfort in the assurance that the cause will thereby gain strength. 
- ‘Abdu’l-Baha  (From a talk, Paris, November 20, 1911; ‘Paris Talks’)