"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 stranger is close to us insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human nature."

"The metropolis exacts from man a different kind of consciousness than does rural life."

"The secret of life is to live as if one were immortal, and to die as if one were mortal."

"The most superficial things can have the deepest meaning."