Over Chol-Hamoed I was looking for some Torah that would give me strength as a head back to work. Hashem brought me to this great shiur as posted and translated on Dafyomireview given by Rabbi Gershon Adelstein, Rosh Yeshiva of Ponevezh.
It discusses the special status of "Rabanan" who are exempt from city tax due to their merit of Torah study guarding the tzibbur. What's interesting is R' Adelsteins definition of "Rabanan"
"It doesn't matter how much he needs to work for his livelihood, whether two, three, or eight hours. If he does this because he is forced to provide his minimum amount (kdei chayav), and his free time is sanctified entirely for torah -he is called 'Rabanan', and is exempt from the guard tax because his torah shields on the tzibur."It's a truly inspiring so please be sure to read it. May we all be zocha to use every free moment we have to toil in Torah and so we can reach this special status of "Rabanan".