https://www.gutenberg.org/files/44733/44733-0.txt :
vou are often to me, and
were yesterday especially, as a good watchman to admonish that
the hours of the night pass on (for so I call my life, as yet
obscure and unserviceable to mankind), and that the day with
me is at hand, wherein Christ commands all to labor, while
there is light
But if you think, as you said, that too much love of learning
is in fault, and that I have given up myself to dream away my
years in the arms of studious retirement . . . yet consider that, if it
were no more but the mere love of learning, whether it proceed
from a principle bad, good, or natural, it could not have held
out thus long against so strong opposition on the other side
of every kind.