„The moral and intellectual condition of a nation may certainly prove of decisive importance on its own account, but all due attention must also be paid to material considerations. When a nation has to reckon with a struggle against superior forces on several fronts, it must neglect nothing that may conduce to the betterment of its situation.“

— Heinz Guderian

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„In order that the social crisis may bring about the proletarian revolution, it is necessary that, besides other conditions, a decisive shift of the petty bourgeois classes occurs in the direction of the proletariat. This gives the proletariat a chance to put itself at the head of the nation as its leader.“
— Leon Trotsky
„It is possible that the Supreme Court itself may overturn its abortion rulings. We need only recall that in Brown v. Board of Education the court reversed its own earlier "separate-but-equal" decision.“
— Ronald Reagan