It Is Not Knowledge, But The Act

It Is Not Knowledge, But The Act Of Learning, Not Possession But The Act Of Getting There, Which Grants The Greatest Enjoyment.

To Praise It Would Amount To Praising Myself. For The Entire Content Of The Work... Coincides Almost Exactly With My Own Meditations Which Have Occupied My Mind For The Past Thirty Or Thirty-five Years.

I Protest Against The Use Of Infinite Magnitude ..., Which Is Never Permissible In Mathematics.

Further, The Dignity Of The Science Itself Seems To Require That Every Possible Means Be Explored For The Solution Of A Problem So Elegant And So Celebrated.

The Enchanting Charms Of This Sublime Science Reveal Only To Those Who Have The Courage To Go Deeply Into It.