A wise man explained the greatest Hebrew song for today comes from Psalm 133.
הִנֵּה מַה טוֹב וּמַה נָּעִים שֶׁבֶת אָחִים גַּם יַחַד
Hinneh mah tov umah na'im Shevet achim gam yachad
Translated: Behold how good and how pleasing / for brothers (people) to sit together in unity.
The word "gam" (also) is not needed so it points to the word yachad (unity). The word is an acronym for the Hebrew:
יש חילוקי דעות
Yesh Chaluka Daot
Translated: There are differences of opinion.
Our strength is not in our agreement but rather in our willingness to sit and discuss our differences of opinion.