Mishnah 8 - Chapter 4 - Pirkei Avot

Hu hayah omer. Al tehi dan yechidi, she'ein dan yechidi ella echad. Ve'al tomar kabbelu da'ti, shehen rasha'in velo attah.

He used to say: judge not alone, for none may judge alone save one. And say not “accept my view”, for they are free but not you.

He was wont to say: Do not judge alone. [Even though an expert judge may do so, it is of the ways of chasiduth not to do so. (And this, only when the litigants did not accept him to judge over them; but when they did, he may judge alone, even in the spirit of chasiduth)]; for there is only One who judges alone. And do not say [to your colleagues, who dissent with your judgments] "Accept my opinion," [for I am an expert, and without you I could have judged alone,] for they are permitted (to assert their opinions) and not you, [for since you had them join you, it is proper that the majority view prevail.]