The irritable passions, where lay his weakest side, were conquered in the same way. His friends once carried him to the House of Commons, to hear a debate on the slave trade, which Colonel Tarlton defended with some warmth. When Naimbanna came out of the house, he exclaimed, with great vehemence and indignation, that he would kill that man wherever he met him; for he told stories of his country. He told people that his countrymen would not work, and that was a great story. His countrymen would work; but Englishmen would not buy work; they would buy only men. His friends told him that he should not be angry with Colonel Tarlton, for perhaps he had been misinformed, and knew no better. Besides, they told him that, at any rate, he had no right to kill him: for the Almighty says, "Vengeance is mine, I will repay, saith the Lord." This calmed him in a moment; and he never afterward expressed the least indignation toward Colonel Tarlton; but he would have been ready to show him any friendly office if it had fallen in his way. At another time, when he saw a drayman using his horse ill, he became enraged, and declared he would get a gun and shoot that fellow directly. But his anger was presently assuaged by this or some similar passage of Scripture: "Be ye angry, and sin not; let not the sun go down upon your wrath." He showed so much tenderness of conscience that he seemed anxious about nothing but to know what his religion required him to do. When he could determine the rectitude of an action, he set an example even to Christians, by showing that he thought there was no difficulty in the performance. He said his father had ordered him, when he arrived in England, never to drink more at one time than a single glass of wine; and he considered his father's injunction as sacred. On this head, therefore, all the instruction which he wanted was to turn his temperance into a Christian virtue, by practising it with a sincere desire to please God. In the gay scenes which often presented themselves to his view, he never mixed. His friends were very solicitous to keep him from all dissipation, which might have corrupted the beautiful simplicity of mind that was so characteristic in him. He was fond of riding on horseback, but when he got upon a horse, it was difficult to govern his desire for rapid motion. After remaining in England a year and a half, and being carefully instructed in the Christian religion, he only waited for an opportunity of returning home, which did not occur for five or six months afterward. In the meantime, two great points were the burden of his thoughts, and gave him much distress. The first related to his father, whose death he heard had happened about a year after he left the country. The principal cause of his solicitude was his uncertainty whether his father had died a Christian. He knew that he had been well disposed toward Christianity, but he had never heard whether he had fully embraced it.