In his texts, Arnot was sharp and outspoken, which was met with mixed feelings. In his
Collection of Celebrated Criminal Trials in Scotland, he clearly comments on what he considered as unjust decisions, using terms such as
despotism. Here, for example, is his
Enlightenment view of 'progress' being made in the sentencing of criminals, while at the same implying the need to reform the criminal justice of his time. We do not think it possible, that a nation can attain to improvement in science, to refinement of taste, and in manners, without, at the same time, acquiring a refinement in their ideas of justice, and feelings of humanity. The codes of the criminal laws of most nations (our own in no ways excepted) are exceedingly barbarous. This is owing to their having been compiled when the respective nations were sunk in barbarity, were subjected to an absolute government, or were blinded with religious bigotry. But, although scarce any attention has been paid to the state of criminal jurisprudence, by revising the penal statutes; yet, with the increasing mildness of manners, the officers of the law have declined to raise prosecutions for inflicting those rigorous punishments. In 1777 Arnot published a "fanciful metaphysical treatise", called an 'Essay on Nothing,' which originally was read before the debating club called the
Speculative Society, and made himself unpopular by his sarcasms. However, he was later a regular participant in church activities, and his contributions to the Society were recognised by the
Edinburgh magistrates, who gave him the
freedom of the city. Arnot was a favourite subject with
John Kay, the Edinburgh caricaturist, who took full advantage of the extreme slimness of his figure. ==References==