He returned with his imagination enriched and his mind expanded, with settled ideas, and thoroughly ripe for his task. CHAPTER 4. AT AVIGNON. The resolute worker resumed his indefatigable labours with an ardour greater than ever, for now he was haunted by a noble ambition, that of becoming a teacher of the superior grade, and of "talking plants and animals" in a chair of the faculty. With this end in view he added to his two diplomas--those of mathematics and physics--a third certificate, that of natural sciences. His success was triumphant. Already tenacious and fearless in affirming what he believed to be the truth, he astonished and bewildered the professors of Toulouse. Among the subjects touched upon by the examiners was the famous question of spontaneous generation, which was then so vital, and which gave rise to so many impassioned discussions. The examiner, as it chanced, was one of the leading apostles of this doctrine. The future adversary of Darwin, at the risk of failure, did not scruple to argue with him, and to put forward his personal convictions and his own arguments. He decided the vexed question in his own way, on his own responsibility. A personality already so striking was regarded with admiration; a candidate so far out of the ordinary was welcomed with enthusiasm, and but for the insufficiency of the budget which so scantily met the needs of public instruction his examination fees would have been returned. (4/1.) Why, after this brilliant success, was Fabre not tempted to enter himself for a fellowship, which would later in his career have averted so many disappointments? It was doubtless because he felt, obscurely, that his ideal future lay along other lines, and that he would have been taking a wrong turning. Despite all the solicitations which were addressed to him he would think of nothing but "his beloved studies in natural history" (4/2.); he feared to lose precious time in preparing himself for a competitive examination; "to compromise by such labour, which he felt would be fruitless" (4/3.), the studies which he had already commenced, and the inquiries already carried out in Corsica. He was busy with his first original labours, the theses which he was preparing with a view to his doctorate in natural science, "which might one day open the doors of a faculty for him, far more easily than would a fellowship and its mathematics." (4/4.) At heart he was utterly careless of dignities and degrees. He worked only to learn, not to attain and follow up a settled calling. What he hoped above all was to succeed in devoting all his leisure to those marvellous natural sciences in which he could vaguely foresee studies full of interest; something animated and vital; a thousand fascinating themes, and an atmosphere of poetry. His genius, as yet invisible, was ripening in obscurity, but was ready to come forth; he lacked only the propitious circumstance which would allow him to unfold his wings.