Advice of Some of The Scholars :

“Its befitting for the student of knowledge that he be firm and patient with a book so he does not leave it without completing it for another science. So, he does not become busy with another before he has mastered the first one”

A Side Note:

In Yemen, those who would bounce from class to class without completing them were usually from those who were unsuccessful in their studies and eventually were labelled as “dropouts” and as “المتذوقون” meaning those who merely taste knowledge.

Mentioned by

AbdulFattaah Bin Uthman
Abu Fajr