Spirituality must conquer the West. Slowly they are finding out that what they want is spirituality to preserve them as nations. They are waiting for it, they are eager for it. Where is the supply to come from? Where are the men ready to go out to every country in the world with the messages of the great sages of India? Where are the men who are ready to sacrifice everything, so that this message shall reach every corner of the world? Such heroic spurs are wanted to help the spread of truth. Such heroic workers are wanted to go abroad and help to disseminate the great truths of the Vedanta. The world wants it; without it the world will be destroyed. The whole of the Western world is on a volcano which may burst tomorrow, go to pieces tomorrow. They have searched every corner of the world and have found no respite. They have drunk deep of the cup of pleasure and found it vanity. Now is the time to work so that India's spiritual ideas may penetrate deep into the West. Therefore young men of Madras, I specially ask you to remember this. We must go out, we must conquer the world through our spirituality and philosophy. There is no other alternative, we must do it or die. The only condition of national life, of awakened and vigorous national life, is the conquest of the world by Indian thought.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 3/Lectures from Colombo to Almora/The Work before us