Likutei Moharan, Part II 72:4/ליקוטי מוהר"ן·תנינא ע״ב:ד׳

14. Moshe Rabbeinu, may peace be upon him, was the all-inclusive daat of all of Israel. Therefore, merely through his seeing, through gazing into each person, he could apportion greatness and authority to each one as was appropriate for the level of [that person’s] mind.

2This is the concept of “As for you, you shall see from among all the people… and you shall appoint over them captains of thousands, and captains of hundreds…” (Exodus 18:21). Specifically “As for you, you shall see,” because through Moshe Rabbeinu’s seeing alone—that he would see and gaze at each and every person—each one’s mind would shine. And through this, each one received greatness and authority commensurate with his worthiness, as was appropriate for the level of his mind—i.e., the concept of “captains of thousands, and captains of hundreds….”

3Thus, this is “As for you, you shall see… and you shall appoint over them captains of thousands….” As a result of Moshe seeing and gazing at the people, through this itself he appoints them “captains of thousands….” This is because as a result of his gazing at them, each one receives his greatness through the shining of his mind, which shines on account of the sage of the generation, the concept of Moshe, gazing at him, as mentioned above.

4And Moshe could also dictate that this one would be a captain of a thousand, and that one a captain of a hundred, and so on. Through his gazing at them, he knew the greatness which each one deserved, because through his gazing he knew the shining of each one’s mind—since the greatness which he deserves is commensurate with the mind’s shining, as mentioned above.