Second Stuttgart Lecture
Then there was a second period, the ancient Persian time, which was inspired by the forces that now work in humans between the ages of seven and fourteen. Then Jesus turned His attention to the third age, the Egyptian time, in which the forces ruled that now work in man from the age of fourteen to twenty-one, when the sentient soul plays a major role in the individual development. In this Egyptian time, the astronomical and mathematical sciences were cultivated.
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