Variant: If the American people knew the corruption in our money system there would be revolution before morning.

Attributed to Henry Ford by Charles Binderup (March 19, 1937), Congressional Record—House vol. 81, p. 2528. The quote is preceded by "It was Henry Ford who said, in substance, this," indicating that it was a paraphrase rather than an actual quote. Ford wrote at length in My Life and Work (1923) against the dominance of finance over industry, including a remark in Chapter XII, quoted above, which is very similar to the attributed statement.