

“Whoever is careless with the truth in small matters cannot be trusted with important matters.”
1950s
Context: In matters concerning truth and justice there can be no distinction between big problems and small; for the general principles which determine the conduct of men are indivisible. Whoever is careless with truth in small matters cannot be trusted in important affairs.
(1955) as quoted in Albert Einstein: Historical and Cultural Perspectives (1997) ed. , p. 388, from The Centennial Symposium in Jerusalem (1979)