His engrossing intellectual labours no doubt tended somewhat to harden his character; and in his zeal for rectitude of purpose he forgot the part which affection and sentiment must ever play in the human constitution.
For this reason did Ahuramazda, and the other gods that be, bring aid to me, because I was not hostile, nor a liar, nor a wrongdoer, neither I nor my family, but according to Rectitude (drstam) have I ruled."
Kingsley's accusation indeed, in so far as it concerned the Roman clergy generally, was not precisely dealt with; only a passing sentence, in an appendix on lying and equivocation, maintained that English Catholic priests are as truthful as English Catholic laymen; but of the author's own personal rectitude no room for doubt was left.
But it remains true that the contrast with the " righteousness of the scribes and pharisees " has always served to mark the requirement of " inwardness " as a distinctive feature of the Christian code - an inwardness not merely negative, tending to the repression of vicious desires as well as vicious acts, but also involving a positive rectitude of the inner state of the soul.
A rare capacity for tedious work, a dour Catonian rectitude, a passion for truth, pride, irritability at criticism and independence of character, are the marks of Herculano as a man.
Again, - just as the Stoics held wisdom to be indispensable to real rectitude of conduct, while at the same time they included under the notion of wisdom a grasp of physical as well as ethical truth, so the similar emphasis laid on inwardness in Christian ethics caused orthodoxy or correctness of religious belief to be regarded as essential to goodness, and heresy as the most fatal of vices, corrupting as it did the very springs of Christian life.
By his mildness of temper and unswerving rectitude, he so endeared himself to the English that he was looked upon and desired as the natural successor to Lanfranc, then archbishop of Canterbury.