Arthur Schopenhauer — "The more unintelligent a man is, the less mysterious existence seems to him."

"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."

"The safest way of not being very miserable is not to expect to be very happy."

"The more perfect a being is, the more it suffers."

"Optimism, where it is not merely the thoughtless chatter of fools, is not only a absurd doctrine, but also a truly wicked way of thinking, a bitter mockery of the unspeakable sufferings of humanity."

"The state is merely a large-scale institution for the prevention of crime, and as such is a necessary evil."