Lecture II
But these abstract concepts educate our souls to the pure thinking described in my The Philosophy of Freedom. It is they that enable us to become free beings. Before people were able to think in abstractions they were not free, self-determined souls. One can develop into a free being only by keeping the inner man free of influences from outside, by developing a capacity to lay hold on moral impulses with the aid of pure thinking, as described in the The Philosophy of Freedom. Pure thoughts are not reality, they are pictures, and pictures exercise no sort of compulsion on us. They leave us free to determine our own actions.
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