The majority of great men are the offspring of unhappy marriages.

- Hermann Graf Keyserling

No radical change on the plane of history is possible without crime.

- Hermann Graf Keyserling

The greatest American superstition is belief in facts.

- Hermann Graf Keyserling

It is hardly possible to estimate how many marriages fail to prosper or are actually ruined because the man lacks any inkling of the art of love.

- Hermann Graf Keyserling