Leibniz wrote "I have often said: 'Aurum latere in stercore illo scholastico barbarico'; {there is gold hidden in all that barbaric scholastic crap} and I wish that some skillful man could be found, versed in this Irish and Spanish philosophy, who would have the inclination and ability to extract what is good from it. I am sure his work would be rewarded with many beautiful and important truths".

I'm not pasting the walltext full quote, but there's also in it mention of Perennis quaedam philosophia. The first one? Don't have the book in digital, for the full quote in Spanish, Google sent me here: http://dx.doi.org/10.12795/Vico.2020.i34.03.

[1] New Essays on Human Understanding, 1704