No More Learning

Like rock or stone, it is o'ergrown
With lichens to the very top,
And hung with heavy tufts of moss,
A           crop:
Up from the earth these mosses creep,
And this poor thorn they clasp it round
So close, you'd say that they were bent
With plain and manifest intent,
To drag it to the ground;
And all had joined in one endeavour
To bury this poor thorn for ever.