Lecture I
Here we have a significant problem which forms, as it were, the first stage to what will be the next higher stage of considerations: How does one arrive at the anthroposophical spiritual science when starting from the familiar science of the present day? I don't believe anyone will be able to answer this question in a truly scientific way who cannot first answer the question: How is our knowledge of a purely observational kind raised to the kind of knowledge of nature that is permeated with mathematics?—how is this knowledge related to mathematical knowledge as such?
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