# What everyone believed yesterday, and you believe today, only cranks will believe tomorrow by Francis Crick > "What everyone believed yesterday, and you believe today, only cranks will believe tomorrow." > **— Francis Crick**, *Of Molecules and Men (1966), prophecy excerpt* Verification Status: Unverified — exact wording/source has not yet been independently confirmed against a primary source; source clue: Of Molecules and Men (1966), prophecy excerpt.