Musar sobre Pirkei Avot 3:5

But this very quality of impudence is very praiseworthy in connection with the Torah and Service to God — to be impudent towards the wicked and stiffen the neck against them in order not to listen to their counsel, and not to accept their lies and abominations and not to flatter them. And a man should have a touch of impudence in observing the commandments if people laugh at him for doing so. He must "harden his face", be bold towards his teachers, to ask what he does not know and not be ashamed in doing this, and he must "harden his face" or be bold in rebuking people and in revealing to them their sins.

Here you have the duties of the true Torah scholar spelled out. He is considered a Torah scholar as long as he diligently uses every opportunity to deepen his Torah knowledge both by day and by night. While doing all this he is relieved of the obligation of paying taxes, and other duties imposed on ordinary citizens. Everyone else will take care of such a Torah scholar's needs. If, however, the Torah scholar chooses a restful existence, וירא מנוחה כי טוב, then his status is reversed and and he becomes למס עובד, subject to paying taxes, etc. In such a situation he will feel the duties of ordinary citizens as especially burdensome. The statement of our sages in Avot 3,6 will apply to him: "He who casts off the yoke of Torah studies will have the yoke of government and secular life imposed upon him."