“He who knows the truth and does not speak it is a miserable coward.”
Alternate version: He who knows the truth and does not speak it truly is a miserable creature.
Quoted in "Julius Streicher" - Page 211 - By Randall L. Bytwerk
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Julius Streicher 43
German politician 1885–1946Related quotes

“He who knows does not speak; he who speaks does not know.”
Variant: Those who know, do not speak, those who speak, do not know.
Source: Tao Te Ching, Ch. 56

“2084. He that does not speak Truth to me, does not believe me when I speak Truth.”
Introductio ad prudentiam: Part II (1727), Gnomologia (1732)

"Lettre du Provincial" (21 December 1899)
Basic Verities, Prose and Poetry (1943)

“He who does not speak foreign languages knows nothing about his own.”
Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen.
Maxim 91
Maxims and Reflections (1833)

The Ethics of Belief (1877), The Limits Of Inference
Context: p>We may believe what goes beyond our experience, only when it is inferred from that experience by the assumption that what we do not know is like what we know. We may believe the statement of another person, when there is reasonable ground for supposing that he knows the matter of which he speaks, and that he is speaking the truth so far as he knows it.It is wrong in all cases to believe on insufficient evidence; and where it is presumption to doubt and to investigate, there it is worse than presumption to believe.</p