The end of all the marquis's actions was to reunite his son to his wife. This was a matter of difficulty, and the greater on account of the sentence pronounced against Mirabeau at Pontarlier, on occasion of his flight with madame de Monnier. Many plans were projected to get rid of this sentence; the readiest was, to obtain letters of abolition from the king. But Mirabeau refused a line of conduct which would have saved him only; he was determined that his cause should not be separated from that of Sophie. [Sidenote: 1782. Ætat. 33.] With a resolution worthy of his impetuous and energetic nature, he surrendered, and constituted himself prisoner at Pontarlier while the cause was again tried. He was counselled to take the line of a timid defence, but he refused. Convinced of the irregularity of his trial, and the want of all judicial proof against him, he met the most imminent danger calmly and resolutely. His father writes:--"His conduct is firm, and his position as advantageous as possible. He is praised for his nobleness and audacity in the singular tone of his appeal against a capital sentence. Now that I see him in saddle, he holds himself well, and has this real advantage with the public, of entirely exculpating his accomplice, on which he is resolved at all events. You have no idea of what your nephew is on great occasions." Nor did the imprisonment of months in an unhealthy and narrow dungeon move him. When his father desired to attempt measures of conciliation with the adversary, he declared that the view of the scaffold under his window would not make him accept any propositions while in prison. "I have said to my father," he wrote to his brother-in-law, M. du Saillant, "and I repeat to you, that, before God and man, no one has a right to interfere in my affairs against my will, my consent, my opinion; and with this firm conviction I declare, that I will consent to no accommodation until former proceedings are reversed; and I will sign nothing in which my simple and entire acquittal, that of madame de Monnier, the restitution of her dowery, an annuity for her, and the payment of my own expenses, are not comprised." His memoirs and defence are eloquent and resolute, and in them first shone forth that brilliant genius which afterwards ruled France.