ONE:The greatest effect that any punishment has upon the human mind is not to be measured by its intensity but by its duration, for our sensibility is more easily and permanently affected by very slight but repeated impressions than by a strong but brief shock. Habit holds universal sway over every sentient being, and as we speak and walk and satisfy our needs by its aid, so moral ideas only stamp themselves on our mind by long and repeated impressions. It is not the terrible yet brief sight of a criminals death, but the long and painful example of a man deprived of[172] his liberty, who, having become as it were a beast of burthen, repays with his toil the society he has offended, which is the strongest restraint from crimes. Far more potent than the fear of death, which men ever have before their eyes in the remote distance, is the thought, so efficacious from its constant recurrence: I myself shall be reduced to as long and miserable a condition if I commit similar misdeeds.But undoubtedly punishment, although in its origin and present intention vindictive, must exercise a certain preventive force against crime, and this preventive force can scarcely be estimated, for that which is prevented is, of course, not seen. But the efficiency of punishment as a deterrent is proportioned to its certainty, and there is a large element of uncertainty that can never be eliminated. For every malefactor there are two hopes: first, that he may escape detection or apprehension; secondly, that he may escape conviction. That his hopes of impunity are not without reason greater than his fears of punishment the following facts attest.
