Reference for Shabbat 227:6
בעא מיניה רבי שמעון בן לקיש מר' חנינא מרדעת מצד אחד או משני צדדין אמר ליה זו לא שמעתי כיוצא בה שמעתי דתנן רבי יוסי אומר של בנאין מצד אחד ושל בור משני צדדין ולא תהא מרדעת חשובה מבגדו של עם הארץ
I have not heard this, he replied, but have heard something similar. For we learnt, R. Jose said: [The garments] of banna'im: [a stain even] on one side [interposes]; of uncultured persons, [only a stain] on both sides [interposes].<span class="x" onmousemove="('comment',' The former are more fastidious than the latter. R. Jose disagrees with R. Judah and maintains that according to R. Ishmael a stain on the garments of banna'im (explained below as meaning scholars) interposes even if it is on one side only. — This passage is cited to show that scholars must be particular. ');"><sup>14</sup></span> And surely a saddle does not stand higher than the garment of an ignoramus!<span class="x" onmousemove="('comment',' I.e., an uncultured person. On 'am ha-arez v. p 51, n. 1. ');"><sup>15</sup></span> What are banna'im — Said R. Johanan: These are scholars, who are engaged all their days in the upbuilding of the world.<span class="x" onmousemove="('comment',' Banna'im lit. means builders. Frankel, Zeitschrift fur die Religiosen Interessen des Judentums', 1846 p. 455 maintains that the term banna'im was originally applied to the Essenes. — Ignorance is the greatest enemy of stability, but it should be noted that the phrase (disciple of the wise) (talmid hakam) always denoted scholarship plus piety. ');"><sup>16</sup></span>