"The value of an idea is not in its truth, but in its power to transform."

"The modern individual lives in a constant tension between freedom and necessity."

"The metropolis, which is the seat of the money economy, is the place of this highest development of individuality."

"The brutality of a man purely motivated by monetary considerations … often does not appear to him at all as a moral delinquency, since he is aware only of a rigorously logical behavior, which draws th…"

"The soul is a battlefield where the forces of life and death struggle for supremacy."