But, while looking to the internal welfare of his kingdom, his gaze was ever fastened on Austria, the hereditary enemy of Prussia. He did not permit the house of Hapsburg to stretch out its rapacious hands after German lands. Looking to the future, and contemplating his death, he endeavored to secure his kingdom against the Hapsburgs beyond the time when he should be no more. This was evinced by Frederick's last political act--the formation of the "Union of Princes"--the Prussian king's last defiance to Austria. This "Union of Princes" was a confederation of German princes against rapacious, grasping Austria. It united all against one, and made the one the enemy of all. The intention and object of this union was to assist and protect each state against the common enemy, to tolerate no trespass on the rights of any one of them, to revenge a wrong done to the smallest member of the union, as if it had been perpetrated on the greatest. Moreover, the welfare of the German people was to be duly considered and promoted, the constitution maintained, and no violation of its requirements to be tolerated. This "Union of Princes" was determined upon, and carried into effect, between Prussia and all the other German states, except Austria, and other states whose sovereigns were related to the Hapsburgs. This union was Frederick's last political act! Against Austria he had first drawn his sword as a young king, and against Austria this, his last blow, was directed in uniting Germany, and making it strong in unity, and free in strength! He had sown the seed destined to bear rich fruit, but he was not to be permitted to reap the harvest. His life was drawing to a close; and the poor, decrepit body reminded the strong and active mind that it would soon leave its prison, and soar to heaven, or into illimitable space! But Frederick wished to serve his people to the last moment. As long as he could still move his hands, they should work for the welfare of his kingdom. As long as his intellect remained clear and active, he would continue to work. At times, however, bodily pain clouded his understanding, and made him peevish and irritable. To have occupied himself with matters of state at such times would have been dangerous, as his physical condition might have affected the decisions he was called upon to make. In his paternal solicitude for the welfare of his people, Frederick gave this subject due consideration, and endeavored to render his bodily afflictions harmless. There were several hours in which he suffered but little from the gout and the asthma, and these were in the early morning, when he felt refreshed after having slept for one or two hours. One or two hours' sleep! This was all Nature accorded the royal invalid, who had watched over Prussia's honor for half a century, and whose eyes were now weary, and longed for slumber and repose. But the king bore this affliction with the patience of a sage--he could even jest about it.