“Whilst the exploits of the conqueror and the intrigues of the demagogue are faithfully preserved through a succession of ages, the persevering and unobtrusive efforts of genius, developing the best blessings of the Deity to man, are often consigned to oblivion.”

From The Life and Works of Sigmund Freud by Ernest Jones, Vol. I, ch. 1 (1953) p. 5
Eine Kindheitserinnerung aus »Dichtung und Wahrheit«, first published in the journal Imago, vol. 5 issue 2 (1917), p. 57 books. google http://books.google.com/books?id=05FXAAAAMAAJ&q=Eroberergef%C3%BChl = http://www.gutenberg.org/files/29946/29946-h/29946-h.htm
1910s

"Eternal Return, and After" https://web.archive.org/web/20110718030428/http://www.thatsmags.com/shanghai/index.php/article/detail/269/eternal-return-and-after (2011)

"On Revolutionary Morality" (1958)
1950's, On Revolutionary Morality (1958)

Platonic Questions, i
Bartlett's Familiar Quotations, 10th ed. (1919)

As quoted from Electrical Review (c. 1895) without further attribution in The Search for the North Pole (1896) by Evelyn Briggs Baldwin, p. 520, this was later published as part of various works by Hubbard, including FRA Magazine : A Journal of Affirmation (1915), and An American Bible (1918) edited by Alice Hubbard. A portion of this was once misattributed to Amelia J Calver in The Manifesto (January 1896) by the United Society of Believers in Christ’s Second Appearing (Shakers), p. 184, and more recently to Kin Hubbard at some sites on the internet.
Context: Genius is often only the power of making continuous efforts. The line between failure and success is so fine that we scarcely know when we pass it — so fine that we are often on the line and do not know it. How many a man has thrown up his hands at a time when a little more effort, a little more patience, would have achieved success. As the tide goes clear out, so it comes clear in. In business sometimes prospects may seem darkest when really they are on the turn. A little more persistence, a little more effort, and what seemed hopeless failure may turn to glorious success. There is no failure except in no longer trying. There is no defeat except from within, no really insurmountable barrier save our own inherent weakness of purpose.

Søren Kierkegaard, Writing Sampler, Nichol P. 73
1840s, Writing Sampler (1844)

Interview on Charlie Rose https://archive.org/details/WHUT_20100614_130000_Charlie_Rose (2000)

describing the Puritan view, Part IV, Ch. 4
Religion and the Rise of Capitalism (1926)

2010: Odyssey Two (1982), Ch. 43: Thought Experiment
1980s
Context: Plans for the final assault on Big Brother had already been worked out and agreed upon with Mission Control. Leonov would move in slowly, probing at all frequencies, and with steadily increasing power — constantly reporting back to Earth at every moment. When final contact was made, they would try to secure samples by drilling or laser spectroscopy; no one really expected these endeavours to succeed, as even after a decade of study TMA-1 resisted all attempts to analyse its material. The best efforts of human scientists in this direction seemed comparable to those of Stone Age men trying to break through the armour of a bank vault with flint axes.