Whereas earlier volumes of mine on differential geometry appeared in murky times, this book was completed as a dream of my youth was fulfilled, the union of my more narrowly seen homeland, Austria, with my larger homeland, Germany.
Sapagkat mas maaga volume ng minahan sa kaugalian geometry lumabas sa madilim beses, ang librong ito ay nakumpleto bilang isang managinip ng aking kabataan ay natupad, ang mga unyon ng aking mga mas mahigpit na makikita tinubuang-bayan, Austria, mas malaki sa aking tinubuang-bayan, Alemanya.