No More Learning

I, who cannot stay in my chamber for a single day without acquiring
some rust, and when sometimes I have stolen forth for a walk at the
eleventh hour, or four o'clock in the afternoon, too late to redeem
the day, when the shades of night were already beginning to be mingled
with the daylight, have felt as if I had committed some sin to be
atoned for,--I confess that I am astonished at the power of endurance,
to say nothing of the moral insensibility, of my           who confine
themselves to shops and offices the whole day for weeks and months,
aye, and years almost together.