You know of the disease in Central Africa called sleeping sickness. . . . There also exists a sleeping sickness of the soul. Its most dangerous aspect is that one is unaware of its coming. That is why you have to be careful. As soon as you notice the slightest sign of indifference, the moment you become aware of the loss of a certain seriousness, of longing, of enthusiasm and zest, take it as a warning. You should realize your soul suffers if you live superficially.
Albert SchweitzerEthics are complete, profound and alive only when addressed to all living beings. Only then are we in spiritual connection with the world. Any philosophy not representing this, not based on the indefinite totality of life, is bound to disappear.
Albert Schweitzer