"Truth is the tree of life, and from it you will eat all your days." ~~ Sefer Hachinuch
"There is no hammer more powerful to beat on the hearts of men than the hard and bitter truth." ~~ Aaron David Gordon
"It is a wise man that admits the truth." ~~ Avot 5:7
"Truth is the seal of God." ~~ Talmud, Shabbat
"A dead truth is no truth." ~~ Eliezer Steinman
"A little of the truth will defeat much of the lie." ~~ Tseidach Laderekh
"Bear the truth even if it be bitter!" ~~ Mivchar Hapeninim
"Truth lives long and yet does not grow old." ~~ Imre Binah
"When I see no way of teaching a truth but one that will please one intelligent man but will offend ten thousand fools, I address myself to the one, and ignore the censure of the thousands." ~~ Maimonides
"The truth hurts like a thorn, at first; but in the end it blossoms like a rose." ~~ Samuel Ha-Nagid
"A truth does not become greater by repetition." ~~ Maimonides
"Out of the mouths of children and drunkards one may discover the truth." ~~ Ladino Proverb