"They were not now in the situation of arguing, for the first time, whether they should act on the principle of restriction or not. For not only on the subject of corn, but on all great branches of trade in this country, they had, from time immemorial, proceeded on a system of restriction. And therefore, he contended, they were not now placed in a situation of discussing first principles. They were not now, for the first time, to inquire, whether they were to act on this principle or not. The system had been acted on for a long period, and we could not depart from it without encountering a frightful revulsion, which it would be dreadful to combat. It was not, therefore, a question between restriction and non-restriction—but how they were to apply principles, that had been long called into action, to the existing circumstances of the country. This was the only ground on which he would now recommend the measure he was about to submit to their consideration."
January 1, 1970
https://en.wikiquote.org/wiki/Frederick_John_Robinson%2C_1st_Viscount_Goderich