“They who bettered life on earth by new-found mastery.”
Source: Aeneid (29–19 BC), Book VI, Line 663 (tr. William Morris); the blessed in Elysium. A paraphrase of this is inscribed on the Nobel prize medals for Physics, Chemistry, Medicine, and Literature: Inventas vitam juvat excoluisse per artes ("inventions enhance life which is beautified through art").
Original
Inventas aut qui vitam excoluere per artes.
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Virgil 138
Ancient Roman poet -70–-19 BCRelated quotes

“A happy life consists not in the absence, but in the mastery of hardships.”
The Simplest Way to be Happy (1933)

Speech to the Byron centenary luncheon (29 April 1924), quoted in On England, and Other Addresses (1926), pp. 123-124.
1924

1940s, Third inaugural address (1941)

2022, June 2022, Remarks by Vice President Harris on Corinthian Student Loan Forgiveness

Quoted in A Dictionary of Quotations, in Most Frequent Use by D.E. Macdonnel (1809) translated from French: Le bonheur de l'homme en cette vi ne consiste pas á être sans passions: il consiste à en être le maître.
Misattributed

Mastery http://www.poemhunter.com/poem/mastery-2/
From the poems written in English