Religious views on truth
There is no unilateral agreement among the different denominations of Judaism concerning truth. In Orthodox Judaism, truth is the revealed word of God, as found in the Hebrew Bible, and to a lesser extent, in the words of the sages of the Talmud. For Hasidic Jews truth is also found in the pronouncements of their rebbe, or spiritual leader, who is believed to possess divine inspiration. Kotzk, a Polish Hasidic sect, was known for their obsession with truth.
Jewish religious movements
Most streams of modern Judaism developed from the Pharisaic movement, which became known as Rabbinic Judaism (in Hebrew "Yahadut Rabanit" - יהדות רבנית) with the compilation of the Oral Torah into the Mishna. After the destruction of the Second Temple and the Bar Kokhba revolt the other movements disappeared from the historical record, yet the Sadducees probably kept on existing in a non-organized form for at least several more decades. A scholar named Rodkinson claimed about a century ago that the Sadducees ultimately changed their name and are those who are referred to as the "Qara'im" and "Ba`alei Miqra" in the Talmud.