The year 1768 was one of the most momentous of the Revolutionary period. Hitherto the colonists, in defence of their property, had denied the supremacy of Parliament as based on usurpation; but now, in defence of their privileges, they denied the prerogative of the king, the source of their political existence. This grew out of the Massachusetts Circular Letter. The General Court came together December 30, 1767. John Hancock, James Otis, and Joseph Hawley were prominent members, but though James Otis was still active, Samuel Adams was the master spirit. Never was his practical sagacity more serviceable to the cause; never did his genius for politics shine brighter. His fruitful pen is apparent in the remarkable series of state papers called forth by the Townshend Acts, comprising the letter of the House to their London agent (January 12, 1768), the Petition to the king (January 20), and the Circular Letter to the assemblies of the several colonies (February 11).[86] If the Townshend Acts were to be successfully resisted, union of sentiment and action among all the colonies was essential. This was the object of the circular letter. It was an arraignment of Parliament and the ministry in respect to the revenue acts, and the system by which the British government proposed to make civil officers, including the judges, the instruments for its enforcement; and it solicited an interchange of opinions on these subjects.[87] Governor Bernard watched the proceedings of the House with the deepest interest, nor was he long in doubt as to the nature of the circular letter, for two days after its adoption a copy of it was proffered, in case he desired it.[88] This letter was preceded (besides the documents already mentioned) by letters to the Marquis of Rockingham, General Conway, Lord Camden, and to the Lords Commissioners of the Treasury. The details of these papers cannot be given here. They present the whole case of the colonies, their rights, their grievances, their remonstrances, and their petitions. They proceeded mainly from the pen of Samuel Adams, who, when he had shaken himself clear from profuse professions of loyalty and disclaimers of "the most distant thoughts of independence", rose to the annunciation of the loftiest principles of statesmanship, in the declaration that "the supreme legislative, in any free country, derives its power from the constitution, by the fundamental rules of which it is bounded and circumscribed;"—"that it is the glory of the British Constitution that it hath its foundation in the law of God and nature;"—"that the necessity of rights and property is the great end of government;"—"that the colonists are natural-born subjects by the spirit of the law of nature and nations;" and "that the laws of God and nature were not made for politicians to alter." Nor does he confine himself to the enunciation of abstract principles, but states the rights of the colonists of Massachusetts on historical grounds,