He is educated who knows how to find out what he doesn't know.

Every relationship between two individuals or two groups will be characterized by the ratio of secrecy that is involved in it.

The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.

The individual has become a mere cog in an enormous organization of things and powers which tear from his hands all progress, spirituality, and value in order to transform them from their subjective form into the form of a purely objective life.

For, to be a stranger is naturally a very positive relation; it is a specific form of interaction.

The calculative exactness of practical life which the money economy has brought about corresponds to the ideal of natural science: to transform the world by mathematical formulas. Only money economy has filled the days of so many people with weighing, calculating, with numerical determinations, with a reduction of qualitative values to quantitative ones.

Discretion is nothing other than the sense of justice with respect to the sphere of the intimate contents of life.