to promote it.  I am not unacquainted, my lords, with the difficulties that obstruct the knowledge of our own hearts, and cannot deny that inclination may be sometimes mistaken for conviction; and men even wise and honest, may imagine themselves to believe what, in reality, they only wish:  but this, my lords, can only happen for want of attention, or on sudden emergencies, when it is necessary to determine with little consideration, while the passions have not yet time to subside, and reason is yet struggling with the emotions of desire.

In other circumstances, my lords, I am convinced that no man imposes on himself without conniving at the fraud, without consciousness that he admits an opinion which he has not well examined, and without consulting indolence rather than reason; and, therefore, my lords, I can with confidence affirm, that I now declare my real opinion, and that if I err, I err only for want of abilities to discover the truth; and hope it will appear to your lordships, that I have been misled at least by specious arguments, and deceived by fallacious appearances, which it is no reproach not to have been able to detect.

It will, my lords, be granted, I suppose, without hesitation, that the law is consistent with itself; that it never at the same time commands and prohibits the same action; that it cannot be at once violated and observed.  From thence it will inevitably follow, that where the circumstances of any transaction are such, that the principles of that law by which it is cognizable are opposite to each other, some expedients may be found by which these circumstances may be altered.  Otherwise a subtle or powerful delinquent will always find shelter in ambiguities, and the law will remain inactive, like a balance loaded equally on each side.

On the present occasion, my lords, I pronounce with the utmost confidence, as a maxim of indubitable certainty, that the publick has a claim to every man’s evidence, and that no man can plead exemption from this duty to his country.  But those whom false gratitude, or contracted notions of their own interest, or fear of being entangled in the snares of examination, prompt to disappoint the justice of the publick, urge with equal vehemence, and, indeed, with equal truth, that no man is obliged to accuse himself, and that the constitution of Britain allows no man’s evidence to be extorted from him to his own destruction.

Thus, my lords, two of the first principles of the British law, though maxims equally important, equally certain, and equally to be preserved from the least appearance of violation, are contradictory to each other, and neither can be obeyed, because neither can be infringed.

How then, my lords, is this contradiction to be reconciled, and the necessity avoided of breaking the law on one side or the other, but by the method now proposed, of setting those whose evidence is required, free from the danger which they may incur by giving it.