Felix Qui Potuit Rerum Cognoscere Causas

Felix Qui Potuit Rerum Cognoscere Causas means
Happy (is s/he) who isable to know the causes of things.

Vergil, Georgics 2.490 (ref. to Lucretius)

“Felix, qui potuit rerum cognoscere causas,atque metus omnis et inexorabile fatumsubiecit pedibus strepitumque Acherontis avari.Fortunatus et ille, deos qui novit agrestis,Panaque Silvanumque senem Nymphasque sorores”

“Blessed is he whose mind had power to probe
The causes of things and trample underfoot
All terrors and inexorable fate
And the clamour of devouring Acheron;
But happy too is he who knows the gods of the countryside,
knows Panand old Silvanus
And the sister Nymphs.”

Translated by L. P. Wilkinson