(A) Martin Luther
Martin Luther, deeply grateful to print, said, "Printing is the ultimate gift of God and the greatest one."
Source: Print Culture and the Modern World, Section 3.2 – Religious Debates and the Fear of Print
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The quote is directly attributed to Martin Luther in the NCERT textbook. Students sometimes confuse him with Gutenberg (who invented the printing press) — Gutenberg invented it, but Luther praised it with these words. Always read quotes carefully and match the speaker, not just the topic.