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N°8. For this reason, the ancient generals often found themselves at leisure to pursue the study of philosophy in the camp; and Lucan, with historical veracity, makes Cæsar relate of himself, that he noted the revolutions of the stars in the midst of preparations for battle.

Media inter prælia semper Sideribus, cœlique plagis, superisque vacavi.

Amid the storms of war, with curious eyes I trace the planets and survey the skies.

That the soul always exerts her peculiar powers, with greater or less force, is very probable, though the common occasions of our present condition require but a small part of that incessant cogitation; and by the natural frame of our bodies, and general combination of the world, we are so frequently condemned to inactivity, that as though all our time we are thinking, so for a great part of our time we can only think.

Lest a power so restless should be either unprofitably or hurtfully employed, and the superfluities of intellect run to waste, it is no vain speculation to consider how we may govern our thoughts, restrain them from irregular motions, or confine them from boundless dissipation.

How the understanding is best conducted to the knowledge of science, by what steps it is to be led forwards in its pursuit, how it is to be cured of its defects, and habituated to new studies, has been the inquiry of many acute and learned men, whose observations I shall not either adopt or censure; my purpose being to consider the moral discipline of the mind, and to promote the increase of virtue rather than of learning. Rh