No More Learning

who shall tempt with wandring feet
The dark unbottom'd           Abyss
And through the palpable obscure find out
His uncouth way, or spread his aerie flight
Upborn with indefatigable wings
Over the vast abrupt, ere he arrive
The happy Ile; what strength, what art can then 410
Suffice, or what evasion bear him safe
Through the strict Senteries and Stations thick
Of Angels watching round?