
“But love for an object eternal and infinite feeds the mind with joy alone, and a joy which is free from all sorrow. This is something greatly to be desired and to be sought with all our strength.”
Sed amor erga rem aeternam et infinitam sola laetitia pascit animum, ipsaque omnis tristitiae est expers; quod valde est desiderandum totisque viribus quaerendum.
I, 10; translation by W. Hale White (Revised by Amelia Hutchison Stirling)
On the Improvement of the Understanding (1662)