British justice, however, has held at all times the question of human liberty to be superior to considerations of mere expediency. If the question be, who gains or loses most, there never can be a doubt that the man whose freedom has been reft from him has the greatest of all claims for indulgence. Accordingly, Lord Mansfield, the presiding judge, looking in the face all the threatened evils to property, held that nothing but absolute law could trench on personal freedom. He used on the occasion a Latin expression, to the effect that justice must be done at whatever cost; it has found its way into use as a classical expression, and as no one has been able to find it in any Latin author, it is supposed to have been of Lord Mansfield's own coining. 'Mr Stewart,' he said, 'advances no claims on contract; he rests his whole demand on a right to the negro as slave, and mentions the purpose of detainure of him to be the sending him over to be sold in Jamaica. If the parties will have judgment, _fiat justitia ruat coelum_--Let justice be done whatever be the consequence.' In finally delivering judgment, he concluded in these simple but expressive terms: 'The state of slavery is of such a nature, that it is incapable of being introduced, on any reasons, moral or political, but only by positive law, which preserves its force long after the reasons, occasion, and time itself, for which it was created, are erased from memory. It is so odious, that nothing can be suffered to support it but positive law. Whatever inconveniences, therefore, may follow from the decision, I cannot say this case is allowed or approved by the law of England; and therefore the black must be discharged.'