But, in conclusion, if the difference discernible between the principles in question and those of every other system, and the great array of truths deducible from them, lead them to discern the importance of continuing the search after these truths, and to observe the degree of wisdom, the perfection and felicity of life, to which they are fitted to conduct us, I venture to believe that there will not be found one who is not ready to labour hard in so profitable a study, or at least to favour and aid with all his might those who shall devote themselves to it with success.
The height of my wishes is, that posterity may sometime behold the happy issue of it, etc.
To the Most Serene Princess, Elizabeth, Eldest Daughter of Frederick, King of Bohemia, Count Palatine, and Elector of the Sacred Roman Empire.
Madam