Sentence:  Bede, never one to shrink from a challenge, focused his energies not only onto calculating Easter but also onto describing why the maths mattered as much as the result. In this, his elevated rhetoric is balanced by a very human enthusiasm — it's hard not to love a writer who <WSD>signposts</WSD> his core hypotheses with phrases such as 'now to gut the bowels of this question!' 
Meaning of the word marked with <WSD> tags:  To indicate logical progress of a discourse using words or phrases such as now, right, to recap, to sum up, as I was saying, etc.