While looking from the window ‘Abdu’l-Baha said:
"We hear the murmur of the sea always continuing. It never ceases. Were it to cease the world would be dead, stagnant, lifeless. But the waves of the mind of man are far greater than those of the sea. They also are ceaseless. They never stop for one instant. This movement is good. If these waves of the mind are few the man is dull and quiet. What pearls and jewels are contained in the depths of the sea! But the pearls and jewels hidden in the mind of man are the knowledge, virtues, capabilities, etc. These pearls can grow and increase in luster forever but the pearls of the sea remain always the same. These waves from our minds go forth and create movement and thought in other minds. From one strong thought of love what great results may be produced."
- 'Abdu'l-Baha (Words of Abdul-Baha; from notes of Miss Rosenberg, London, England; taken at Acca, January, 1909; Star of the West, vol. 8, no. 2, April 9, 1917)