The title of the chapter giving this and following couplets, is
trepidation at the thought of wrongdoing. The very thought of wrongdoing frightens good
men, although bad men see nothing terrible in wrongdoing. Bad men have got over natural
fear and hesitation by use and wont.
The fear of evil as first
experienced is something precious that should be kept undiminished. From evil spring's
fresh evil, like fire which regenerates itself. Men should shrink from sin as from a
terror even worse than fire. The peculiarity of fire is that, out of what it consumes it
makes for itself regenerative continuity.