My brother, who hath well concluded, that the union of Hearts, in these times of danger, is as necessary as the forces of the Kingdome, to oppose with the more puissance, the Enemies of the greatnesse of this Crowne, and its tranquilitie.
Source, in full
Proclamation to the nation, on reconciling with his brother Gaston; reported in The Continuation of the Actions, Passages, and Occurrences, both Politike and Polemicall, in the Upper Germanie (London: E. P. for Nathanael Butler, 1637), p. 100