But, erelong, the genius of this profound thinker was devoted to more congenial and worthy objects. In 1726, he sold his office of president of the parliament of Bourdeaux, partly in order to escape from the toils of legal pursuit and judicial business, which, in that mercantile and rising community, was attended with great labour; partly in order to be enabled to travel, and study the institutions and character of different nations--a pursuit of which he was passionately fond, and which, without doubt, had a powerful effect in giving him that vast command of detached facts in political science, and that liberal view of institutions, habits, and manners, differing in some degree from his own, by which his philosophical writings are so eminently distinguished. Here, as in the biography of almost all other really great men, it is found, that some circumstances apparently trivial or accidental have given a permanent bent to their mind; have stored it with the appropriate knowledge, and turned it, as it were, into the allotted sphere, and contributed to form the _matrix_ in which original thought was formed, and new truth communicated by Providence to mankind. In the course of his travels, which lasted several years, he visited successively Austria, Hungary, Italy, Switzerland, the Rhine, Flanders, Holland, and England--in the latter of which he lived two years. During these varied travels, he made notes on all the countries which he visited, which contributed largely to the great stock of political information which he possessed. These notes are still extant; but, unfortunately, not in such a state of maturity as to admit of publication. On his return to France, which took place in 1732, he retired to his native chateau of La Brede, and commenced in good earnest the great business of his life. The fruit of his studies and reflections appeared in the _Considerations sur les Causes de la Grandeur et de la Decadence des Romains_, which was published in 1732. Great and original as this work--the most perfect of all his compositions--was, it did not give vent to the whole ideas which filled his capacious mind. Rome, great as it was, was but a single state; it was the comparison with other states, the development of the general principles which run through the jurisprudence and institutions of all nations, which occupied his thoughts. The success which attended his essay on the institutions and progress of a single people, encouraged him to enlarge his views and extend his labours. He came to embrace the whole known world, civilized and uncivilized, in his plan; and after fourteen years of assiduous labours and toil, the immortal "Spirit of Laws" appeared.