Let us worship the spirit in spirit, standing on spirit. Let the foundation be spirit, the middle spirit, the culmination spirit.
Swami VivekanandaNever mind these failures, these little backslidings; hold the ideal a thousand times, and if you fail a thousand times, make the attempt once more.
Swami VivekanandaMy child, what I want is muscles of iron and nerves of steel, inside which dwells a mind of the same material as that of which the thunderbolt is made.
Swami VivekanandaAll the forces that we see in nature, such as gravitation, attraction, and repulsion, or as thought, feeling, and nervous motion - all these various forces resolve into that Prana, and the vibration of the Prana ceases. In that state it remains until the beginning of the next cycle. Prana then begins to vibrate, and that vibration acts upon the Akasha, and all these forms are thrown out in regular succession.
Swami Vivekananda