Man and the Historical and Moral Life of Humanity according to the Results of Spiritual Science

Then there was a decline, and for our time – one can calculate such things, but I can only present the results here – the 27th year is approximately the limit up to which the soul and spirit go along with the physical and bodily. In spiritual science, I call what I have just explained the process by which humanity becomes ever younger. Humanity remains, so to speak, youthfully fresh, growing and flourishing in older times well into old age; it retained its developmental forces well into old age. I call this process by which humanity becomes ever younger.