In the same way it cannot understand that the sun is the center and that the earth revolves around it. Hence it is proved and verified that in man there is a power of discovery by which he is distinguished from the animals, and this is the spirit of man. The love of exaltation is one of the characteristics of man. An Arab child of ten years can manage two or three hundred camels in the desert, and with his voice can lead them forward or turn them back. A weak Hindu can so control a huge elephant, that the elephant becomes the most obedient of servants.
Man alone can resist nature.
For example, man drives engines over the mountains and through the wildernesses, and gathers in one spot the news of the events of the East and West. All this is contrary to nature. In the same way, from the proofs and signs we have mentioned, we argue that there is a human spirit. If we wish to deny everything that is not sensible, then we must deny the realities which unquestionably exist. For example, ethereal matter is not sensible, though it has an undoubted existence.