Mishnah 5 - Chapter 2 - Pirkei Avot

Hu hayah omer. Ein bor yerei chet, velo am ha'aretz chasid, velo habbayshan lamed, velo hakkappedan melammed, velo chol hammarbeh vischorah machkim. Vvimkom she'ein anashim, hishtaddel lihyot ish.

He used to say: A brute is not sin-fearing, nor is an ignorant person pious; nor can a timid person learn, nor can an impatient person teach; nor will someone who engages too much in business become wise. In a place where there are no men, strive to be a man.

He was wont to say: "A bur will not fear sin." [A "bur" is one who is "empty" of everything (the Targum of Genesis 47:19 "And the land will not be empty" is "And the land will not be bur.") He is empty even of business acumen and is worse than an "ignoramus"], and an ignoramus cannot be a saint, [but, having business acumen, he can be a fearer of sin], and he who is ashamed will not learn. [Being ashamed to ask lest he be mocked, he will remain with his doubts forever], and the pedant will not teach. [He who is "pedantic" (not forthcoming) with his students when they ask him, will not teach correctly. He must be "open" with them in (the teaching of) halachah], and all who (over) engage in trade will not be wise, [viz. Deuteronomy 30:13: "And it is not across the seas" — Torah is not to be found with those who cross the seas (in trade). (Eruvin 55a)], and in a place where there are no men [to sit at the head and render halachic decisions], strive to be a man.