In these Notes and Observations Beccaria and his work were assailed with that vigour and lucidity for which the Dominican school of writing has always been so conspicuous. The author was described as a man of narrow mind, a madman, a stupid impostor, full of poisonous bitterness and calumnious mordacity. He was accused of writing with sacrilegious imposture against the Inquisition, of believing that religion was incompatible with the good government of a state; nay, he was condemned by all the reasonable world as the enemy of Christianity, a bad philosopher, and a bad man. His book was stigmatised as sprung from the deepest abyss of darkness, horrible, monstrous, full of poison, containing miserable arguments, insolent blasphemies, and so forth.
From political morality, unless founded on the immutable sentiments of mankind, no lasting advantage can be hoped. Whatever law deviates from these sentiments will encounter a resistance which will ultimately prevail over it, just in the same way as a force, however slight, if constantly applied, will prevail over a violent motion applied to any physical body. If the interpretation of laws is an evil, it is clear that their obscurity, which necessarily involves interpretation, must be an evil also, and an evil which will be at its worst where the laws are written in any other than the vernacular language of a country. For in that case the people, being unable to judge of themselves how it may fare with their liberty or their limbs, are made dependent on a small class of men; and a book, which should be sacred and open to all, becomes, by virtue of its language, a private and, so to speak, a family manual.The greater the number of those who understand and have in their hands the sacred code of the laws, the fewer will be the crimes committed; for it is beyond all doubt that ignorance and uncertainty of punishments lend assistance to the eloquence of the passions. Yet what shall we think of mankind, when we reflect, that such a condition of the laws is the inveterate custom of a large part of cultivated and enlightened Europe? From political morality, unless founded on the immutable sentiments of mankind, no lasting advantage can be hoped. Whatever law deviates from these sentiments will encounter a resistance which will ultimately prevail over it, just in the same way as a force, however slight, if constantly applied, will prevail over a violent motion applied to any physical body.