WIST

Strong, responsible unions are essential to industrial fair play. Without them the labor bargain is wholly one-sided. The parties to the labor contract must be nearly equal in strength if justice is to be worked out, and this means that the workers must be organized and that their organizations must be recognized by employers as a condition precedent to industrial peace.

Louis Brandeis (1856-1941) American lawyer, activist, Supreme Court Justice (1916-39)
In The Curse of Bigness: Miscellaneous Papers of Louis D. Brandeis [ed. Fraenkel and Lewis] (1965)
    (Source)