of political theory in Britain from 1689 to 1720, J. P. Kenyon said that Sidney's Discourses "were certainly much more influential than Locke's Two Treatises". The poet James Thomson, in his poem The Seasons, praised Sidney as "the British Cassius", the hero "warmed" by "ancient learning to the enlightened love/Of ancient freedom". Sidney's reputation suffered a blow when Sir John Dalrymple published his Memoirs of Great Britain and Ireland in 1771, which exposed him as a pensioner of Louis XIV. Dalrymple, who had greatly admired Sidney, wrote that he would hardly feel more shame if he had seen his own son run away from a battle. The Whig MP Charles James Fox described Sidney and Lord Russell as "two names that will, it is hoped, be ever dear to every English heart" and predicted that "when their memory shall cease to be an object of respect and veneration ... English liberty will be fast approaching its final consummation". Sidney had a significant effect on the American conception of liberty. He was a hero of John Trenchard and Thomas Gordon, "the best-read and most widely regarded pamphleteers of prerevolutionary times". In their 1720–1723 essays Cato's Letters, they adopted Sidney's argument that "free men always have the right to resist tyrannical government"; those essays, in turn, inspired the name of the modern libertarian think tank the Cato Institute. Thomas Jefferson believed Sidney and Locke to be the two primary sources for the Founding Fathers' view of liberty. John Adams wrote to Jefferson in 1823 on the subject of Sidney: The Whig historian Thomas Babington Macaulay said of Sidney in 1828: But in 1848, Macaulay wrote of the Whig opposition to Charles II: The libertarian philosopher Friedrich Hayek quoted Sidney's Discourses on the title page of his The Constitution of Liberty: "Our inquiry is not after that which is perfect, well knowing that no such thing is found among men; but we seek that human Constitution which is attended with the least, or the most pardonable inconveniences". Algernon Sidney is one of the namesakes for Hampden–Sydney College in Virginia. The College formerly used the original spelling of Sidney. He was chosen because of the role his ideas played in moulding the beliefs of the American Revolutionary thinkers. Sidney became widely used as a given name in the United States after the American Revolution due to admiration for Algernon Sidney as a martyr to