of Scotland except the sending in of one exercise, This exercise he
could never be persuaded to send in, and that not because he had any
speculative difficulties as to the truth of the Christian revelation,
nor yet because he had any exaggerated misgivings as to his own
qualifications for the work of the ministry; but because he preferred
the teaching profession, and was, moreover, indignant at what he
conceived to be the overbearing attitude which the ministers of the
Established Church assumed to the parish schools and schoolmasters.
This feeling ultimately became a kind of mania with him. He was at
feud with his own parish minister, and never entered his church
except when, arrayed in a blue cloak with a red collar, he attended
to read proclamations of marriages; and he could make himself very
disagreeable when the local Presbytery sent their annual deputation
to examine his school. Yet he was essentially a religious man; he had
a reverence for what was good, and he taught the Bible and Shorter
Catechism to his scholars carefully and well.

As he disliked the ministers, so he showed little deference to the
farmers, who were in some sort the "quality" of the district, and to
such of their offspring as came under his care. The farmers retaliated
by setting up an opposition school in Cockburnspath, which survived
for a few years; but it never flourished, for the common people
believed in M'Gregor, whom they regarded as "a grand teacher," as
indeed he was. He had a spare, active figure, wore spectacles, and
took snuff. There was at all times an element of grimness in him, and
he could be merciless when the occasion seemed to demand it. "Stark
man he was, and great awe men had of him," but this awe had its roots
in a very genuine respect for his absolutely just dealing and his
masterful independence of character.