On a 1659 journey to London as ambassador, he launched a project for Sophopolis; it was taken up by the
Hartlib Circle. Boyle had already had such a plan, costed at something over £1000, in a letter from
John Evelyn in September 1659; Skytte's concept was on a similar scale. While nothing came of the plan, one of the precursors of the
Royal Society of the
English Restoration, Skytte had backing at the time, from Hartlib and his associate
John Beale, and Boyle. Hartlib gave a very circumstantial account of the position of the group of virtuosi, meeting regularly both at Gresham College and in
William Ball's chambers in the
Middle Temple, in a letter of 17 December 1660 to
John Worthington; at this point he had not yet met with Skytte to discuss
Antilia, a generic name used for pansophic projects. Skytte had approached
Charles II of England for a grant to support his scheme, but the evolution of the thinking of the virtuosi bypassed his plan, and Hartlib. In 1666, Skytte quarrelled with the Swedish court, and he travelled to see
Frederick William, Elector of Brandenburg. With the help of the physician Nicholas Bonnet, he presented to the Elector a plan for a Brandenburg University, which would have a "universal" quality. The chosen location was
Tangermünde. This was another "Sophopolis" or
Solomon's House project, possibly in emulation of the Royal Society of London. Overambitious, it did not succeed. In 1669, Skytte was at the court of
Hanau, where he clashed with
Johann Joachim Becher; he acted as patron there for
Daniel Neuberger the younger (1621-1680), a sculptor in wax. In that year, also, he was reported to the authorities in Frankfurt by
Philipp Jakob Spener, the
Pietist, for table talk disrespectful of the Bible. ==Works==