"The commerce of a free people is many times more valuable than that of slaves. Freemen produce and consume vastly more than slaves. They have therefore more to buy and more to sell. Hence the free states have a direct pecuniary interest in the civil freedom of all the other states. Commerce between free and slave states is not reciprocal or equal."

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Our spirits have their own private way of understanding each other, of becoming intimate, while our external persons are still trapped in the commerce of ordinary words, in the slavery of social rules. Souls have their own needs and their own ambitions, which the body ignores when it sees that it's impossible to satisfy them or achieve them.

— Luigi Pirandello