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

For the division of labor demands from the individual an ever more one-sided accomplishment, and the greatest advance in a one-sided pursuit only too frequently means dearth to the personality of the individual.

Music and love are the only accomplishments of humanity which do not, in an absolute sense, have to be called attempts with unsuitable means.

Every superior personality, and every superior performance, has, for the average of mankind, something mysterious.

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.

Man's nature, originally good and common to all, should develop unhampered.

Gratitude, as it were, is the moral memory of mankind. In this respect, it differs from faithfulness by being more practical and impulsive: although it may remain, of course, something purely internal, it may yet engender new actions. It is an ideal bridge which the soul comes across again and again, so to speak, and which, upon provocations too slight to throw a new bridge to the other person, it uses to come closer to him.