Even just studying the Creed will give us a lifetime of learning...

Let this be enough about the Creed to lay a foundation for the simple, so that they may not be burdened.  Then, if they understand the substance of it, they themselves may afterward drive to gain more, refer to these parts whatever they learn in the Scriptures, and may ever grow and increase in richer understanding.  For as long as we live here, we shall daily have enough to preach and to learn this.
~BOC, LC, II, 70

We must ever remain students...

Can we finish learning in one hour what God Himself cannot finish teaching?  He is engaged in teaching this from the beginning to the end of the world.  All prophets, together with all saints, have been busy learning it, have ever remained students, and must continue to be students.
~BOC, LC, Longer Preface, 16