He was educated at the seminary of Quebec, where he developed the gift of declamatory and persuasive oratory.
His prose Avis au peuple francais (August 24, 1790) was followed by the rhetorical Jeu de paume, a somewhat declamatory moral ode addressed "a Louis David, peintre."
Though vigorous in thought and in some passages clear and eloquent, the style of the Systeme is diffuse and declamatory, and asserts rather than proves its statements.
Both are declamatory, extravagant in character, highly lyrical and immediately establish the soloist as a romantic protagonist.
It shows, though in rather a diffuse and declamatory form, that application of wide historical knowledge, keen philosophical perception, and genuine eloquence to a practical purpose which was the great characteristic of Mirabeau, both as a political thinker and as a statesman.