File:Denis Diderot (1713–1784) MET 205677.jpg [T]he purpose of an encyclopedia is to collect knowledge disseminated around the globe; to set forth its general system to the men with whom we live, and transmit it to those who will come after us, so that the work of preceding centuries will not become useless to the centuries to come; and so that our offspring, becoming better instructed, will at the same time become more virtuous and happy, and that we should not die without having rendered a service to the human race. — Denis Diderot (hat tip to WP:PURPOSE)
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