The Scottish Communist is a much misunderstood person. When he is a true Caledonian, and not a Pole or an Irishman, he is simply the lineal descendant of the old Radical. The Scottish Radical was a man who held a set of inviolable principles on which he was entirely unable to compromise. It did not matter what the principles were; the point was that they were like the laws of Sinai, which could not be added to or subtracted from. When the Liberal party began to compromise, he joined Labour; when Labour began to compromise, by a natural transition he became a Communist. Temperamentally he has not changed. He is simply the stuff which in the seventeenth century made the unyielding Covenanter, and in the eighteenth the inflexible Jacobite. He is honesty incarnate, but his mind lacks flexibility.
John Buchan