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Read through the most famous quotes by topic #check
When goods are exchanged between countries, they must be paid for by commodities or gold. They cannot be paid for by the notes, certificates, and checks of the purchaser's country, since these are of value only in the country of issue. ↗
Contradictions do not exist. Whenever you think you are facing a contradiction, check your premises. You will find that one of them is wrong. ↗