'His thoughts were soon called to that most important question, of the Union between England and Ireland, which it was expected would be discussed at the meeting of Parliament.

'It was late in life to begin a political career—imprudently so, had it been with the common views of family advancement or of personal fame; but his chief hope, in going into Parliament, was to obtain assistance in forwarding the great object of improving the education of the people: he wished also to assist in the discussion of the Union. He was not without a natural desire, which he candidly avowed, to satisfy himself how far he could succeed as a parliamentary speaker, and how far his mind would stand the trial of political competition or the temptations of ambition.

'On the subject of the Union he had not yet been able, in parliamentary phrase, to make up his mind: and he went to the House in that state in which so many profess to find themselves, and so few ever really are—anxious to hear the arguments on both sides, and open to be decided by whoever could show him that which was best for his country.

'The debate on the first proposal of the Union was protracted to an unusual length, and when he rose to speak, it was late at night, or rather it was early in the morning—two o'clock—the House had been so wearied that many of the members were asleep. It was an inauspicious moment. No person present, not even the Speaker, who was his intimate friend, could tell on which side he would vote. Curiosity was excited: some of the outstretched members were roused by their neighbours, whose anxiety to know on which side he would vote prompted them to encourage him to proceed. This curiosity was kept alive as he went on; and when people perceived that it was not a set speech, they became interested. He stated his doubts, just as they had really occurred, balancing the arguments as he threw them by turns into each scale, as they had balanced one another in his judgment; so that the doubtful beam nodded from side to side, while all watched to see when its vibrations would settle. All the time he kept both parties in good humour, because each expected to have him their own at last. After stating many arguments in favour of what appeared to him to be the advantages of the Union, he gave his vote against it, because, he said, he had been convinced by what he had heard in that House this night, that the Union was at this time decidedly against the wishes of the great majority of men of sense and property in the nation. He added that if he should be convinced that the opinion of the country changed at the final discussion of the question, his vote would be in its favour.

'One of the anti-Unionists, who happened not to know my father personally, imagined from his accent, style, and manner of speaking, that he was an Englishman, and accused the Government of having brought a new member over from England, to impose him upon the House, as an impartial country gentleman, who was to make a pretence of liberality by giving a vote against the Union, while, by arguing in its favour, he was to make converts for the measure. Many on the Ministerial bench, who had still hopes that, on a future occasion, Mr. Edgeworth might be convinced and brought to vote with them, complimented him highly, declaring that they were completely surprised when they learned how he voted; for that undoubtedly the best arguments on their side of the question had been produced in his speech. Lord Castlereagh found the measure so much against the sense of the House that he pressed it no further at that time.

'This session my father had the satisfaction of turning the attention of the House to a subject which he considered to be of greater and more permanent importance than the Union, or than any merely political measure could prove to his country, the education of the people. By his exertions a select committee was appointed, and they adopted the resolutions drawn up by him. When the report of this committee was brought up to the House, my father spoke at large upon the subject.

'In his speech he said: It was impossible, when moral principles are instilled into the human mind, when people are regularly taught their duty to God and man, that abominable tenets can prevail to the subversion of subordination and society. He would venture to assert, though the power of the sword was great, that the force of education was greater. It was notorious that the writings of one man, Mr. Burke, had changed the opinions of the whole people of England against the French Revolution. … If proper books were circulated through the country, and if the public mind was prepared for the reception of their doctrines, it would be impossible to make the ignorance of the people an instrument of national ruin.

'There is, he contended, a fund of goodness in the Irish as well as in the English nature. Did God give different minds to different countries? No, the difference of mind arose from education. It therefore became the duty of Parliament to improve as much as possible the public understanding—for the misfortunes of Ireland were owing not to the heart, but the head: the defect was not from nature, but from want of culture.

'During this session my father spoke again two or three times, on some questions of revenue regulations and excise laws: of little consequence separately considered, but of importance in one respect, in their effect on the morality of the people. He pointed out that nothing could with more certainty tend to increase the crime of perjury than the multiplying custom-house oaths, and what are termed oaths of office. … In Ireland the habits of the common people are already too lax with regard to truth. The difference of religion, and the facilities of absolution, present difficulties so formidable to their moral improvement as to require all the counteracting powers of education, example, public opinion, and law. . . . Multiplying oaths injures the revenue, by increasing incalculably the means of evading the very laws and penalties by which it is attempted to bind the subject. Experience proves that this is a danger of no small account to the revenue; though trifling when compared with the importance of the general effect on national morality, and on the safety and tranquillity of the State, all which must ultimately rest, at all times and in all countries, upon religious sanctions. "It was not," my father observed, "by increasing pains and penalties, or by any severity of punishment, that the observance of laws can be secured; on the contrary, small but certain punishments, and few but punctually executed laws, are most likely to secure obedience, and to effect public prosperity."'

He writes to Darwin in March 1800: 'The fatigue of the session was enormous. I am a Unionist, but I vote and speak against the union now proposed to us—as to my reasons, are they not published in the reports of our debates? It is intended to force this measure down the throats of the Irish, though five-sixths of the nation are against it. Now, though I think such union as would identify the nations, so as that Ireland should be as Yorkshire to Great Britain, would be an excellent thing: yet I also think that the good people of Ireland ought to be persuaded of this truth, and not be dragooned into the submission.