Фридрих Ницше.Gutenberg, THUS SPAKE ZARATHUSTRA(англ.). Project Gutenberg (декабрь 1999). — «"When Zarathustra was thirty years old, he left his home and the lake of his home, and went into the mountains. -- Liest thou not in a sky-blue lake of happiness? — Ye wags, answered Zarathustra, and smiled, how well did ye choose the simile! -- What is great in man is that he is a bridge and not a goal. What is lovable in man is that he is an OVER-GOING and a DOWN-GOING. -"».
Hartmut Köhler (перевод и комм.): La Commedia / Die Göttliche Komödie III. Paradiso / Paradies. Stuttgart, 2012 г., ISBN 978-3-15-010796-6, стр. 21–25.
