Happy is the student who, starting in on his lesson rested and fresh,

can study with such concentration that an hour of steady application
will leave him mentally exhausted and limp
Happy is the student who, starting in on his lesson rested and fresh,
can study with such concentration that an hour of steady application
will leave him mentally exhausted and limp. That is one hour of triumph
for him, no matter what else he may have accomplished or failed to
accomplish during the time. He can afford an occasional pause for rest,
for difficulties will melt rapidly away before him. He possesses one key
to successful achievement.