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

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

By my existence I am nothing more than an empty place, an outline,that is reserved within being in general. Given with it, though, is the duty to fill in this empty place. That is my life.

Thus, the technique of metropolitan life is unimaginable without the most punctual integration of all activities and mutual relations into a stable and impersonal time schedule.

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 psychological basis of the metropolitan type of individuality consists in the intensification of nervous stimulation which results from the swift and uninterrupted change of outer and inner stimuli.

In order to accommodate to change and to the contrast of phenomena, the intellect does not require any shocks and inner upheavals; it is only through such upheavals that the more conservative mind could accommodate to the metropolitan rhythm of events.