“The disease of the soul is both more common and more deadly than the disease of the body. Just as medicine is the art devoted to healing the body, so philosophy is the art devoted to healing the so...”

“Popular medicine and popular morality belong together and ought not to be evaluated so differently as they still are: both are the most dangerous pseudo-sciences.”

“The greatest mistake in the treatment of diseases is that there are physicians for the body and physicians for the soul, although the two cannot be separated.”

“Anyone who is capable of getting themselves made President should on no account be allowed to do the job.”

“Politics determines who has the power, not who has the truth.”

“Immer wieder behauptete Unwahrheiten werden nicht zu Wahrheiten, sondern, was schlimmer ist, zu Gewohnheiten.”