It is not worth our while to discuss, like sophisters, whether, in no case, some evil, for the sake of some benefit, is to be tolerated. Nothing universal can be rationally affirmed on any moral or any political subject. Pure metaphysical abstraction does not belong to these matters. The lines of morality are not like ideal lines of mathematics. They are broad and deep as well as long. They admit of exceptions; they demand modifications. These exceptions and modifications are not made by the process of logic, but by the rules of prudence. Prudence is not only the first in rank of the virtues political and moral, but she is the director, the regulator, the standard of them all. Metaphysics cannot live without definition; but prudence is cautious how she defines. Our courts cannot be more fearful in suffering fictitious cases to be brought before them for eliciting their determination on a point of law, than prudent moralists are in putting extreme and hazardous cases of conscience upon emergencies not existing. Without attempting therefore to define, what never can be defined, the case of a revolution in government, this, I think, may be safely affirmed, that a sore and pressing evil is to be removed, and that a good, great in its amount, and unequivocal in its nature, must be probable almost to certainty, before the inestimable price of our own morals, and the well-being of a number of our fellow-citizens, is paid for a revolution. If ever we ought to be economists even to parsimony, it is in the voluntary production of evil. Every revolution contains in it something of evil. APPEAL TO IMPARTIALITY. The quality of the sentence does not however decide on the justice of it. Angry friendship is sometimes as bad as calm enmity. For this reason the cold neutrality of abstract justice is, to a good and clear cause, a more desirable thing than an affection liable to be any way disturbed. When the trial is by friends, if the decision should happen to be favourable, the honour of the acquittal is lessened; if adverse, the condemnation is exceedingly embittered. It is aggravated by coming from lips professing friendship, and pronouncing judgment with sorrow and reluctance. Taking in the whole view of life, it is more safe to live under the jurisdiction of severe but steady reason, than under the empire of indulgent but capricious passion. It is certainly well for Mr. Burke that there are impartial men in the world. To them I address myself, pending the appeal which on his part is made from the living to the dead, from the modern Whigs to the ancient. HISTORICAL ESTIMATE OF LOUIS XVI.