Isha Upanishad Swami Sarvananda
A simple translation of the Upanishad containing the original text in Devanagari, transliteration of each shloka, and word-for-word English rendering ... PB Pages: 35
Take up one idea. Make that one idea your life -- think of it, dream of it, live on that idea. Let the brain, muscles, nerves, every part of your body, be full of that idea, and just leave every other idea alone. This is the way to success, and this is the way great spiritual giants are produced. Others are mere talking machines.
-Swami Vivekananda