“Some years ago, as Your Serene Highness well knows, I discovered in the heavens many things that had not been seen before our own age.”

Letter to the Grand Duchess Christina (1615)
Context: Some years ago, as Your Serene Highness well knows, I discovered in the heavens many things that had not been seen before our own age. The novelty of these things, as well as some consequences which followed from them in contradiction to the physical notions commonly held among academic philosophers, stirred up against me no small number of professors — as if I had placed these things in the sky with my own hands in order to upset nature and overturn the sciences. They seemed to forget that the increase of known truths stimulates the investigation, establishment, and growth of the arts; not their diminution or destruction.<!-- ¶1

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Galileo Galilei 70
Italian mathematician, physicist, philosopher and astronomer 1564–1642

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“Most fortunate Prince, we have known and seen how in the third year of your reign in the year of Our Lord 1498, in which your Highness ordered us to discover the Western region, a very large landmass with many large islands adjacent, extending 700 North of the Equator, and located beyond the greatness of the Ocean, has been discovered and navigated; this distant land is densely populated and extends 28º degrees on the other side of the Equator towards the Antarctic Pole. Such is its greatness and length that on either side its end has not been seen or known, so that it is certain that it goes round the whole globe.”

Duarte Pacheco Pereira (1460–1533) Portuguese explorer

Bemauenturado Príncipe, temos sabido e visto como no terceiro anno de vosso Reinado do hanno de nosso senhor de 1498, donde nos vossa alteza mandou descobrir a parte oucidental, passando alem ha grandeza do mar oceano, onde he achada a navegada hûa tão grande terra firme, com muitas e grandes ilhas ajacentes a ella, que se estende a setente graaos de ladeza da linha equinoçial contra ho pollo artico e posto que seja asaz fora, he grandemente pouorada, e do mesmo circulo equinocial torna outra vez e vay alem em vinte e oito graaos e meo de ladeza contra ho pollo antartico, e tanto se dilata sua grandeza e corre com muita longura, que de hûa parte nem da outra foy visto nem sabido ho fim e cabo della; pello qual segundo ha hordem que leua, he certo que vay en cercoyto por toda a Redondeza.
Esmeraldo de situ orbis [published between 1506 and 1508], Part I, ch. I, translated and edited by George Herbert Tinley Kimble, London: 1937, p. 12; Duarte Pacheco Pereira was most likely referring to the coast of Brazil.
Variant translations:
Your Highness sent us to discover towards the west, across the broad expansion of the ocean sea where there is found and sailed a very large mainland with many and large adjacent islands, which extends to 70°N of the equator to … 28º 50S.
As quoted in Diffie, Davison, Winius, Foundations of the Portuguese Empire (1977), p. 451
In the third year of your reign, in the year of grace of 1498, Your Highness ordered me that I went on a discovery expedition, in the areas of the west, crossing the entire extension of the ocean sea, where there was found and rounded a great firm land...
As quoted in Silva Pinto Sagres (2002), p. 313

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“Sixty years ago I knew everything. Now I know nothing. Education is a progressive discovery of our own ignorance.”

Will Durant (1885–1981) American historian, philosopher and writer

Quoted in "Books: The Great Gadfly", Time magazine, 8 October 1965 (review of The Age of Voltaire by Will and Ariel Durant)

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