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Ikhwan al-Safa
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This is the name, translated as the Brethren of Purity (or Brethren of Sincerity), of a secret Arab Muslim brotherhood of philosophers founded in Basra, Iraq sometime during the 10th century.

Science Quotes by Ikhwan al-Safa (1 quote)

Know, oh Brother (May God assist thee and us by the Spirit from Him) that God, Exalted Be His Praise, when He created all creatures and brought all things into being, arranged them and brought them into existence by a process similar to the process of generation of numbers from one, so that the multiplicity [of numbers] should be a witness to his Oneness, and their classification and order an indication of the perfection of His wisdom in creation. And this would be a witness to the fact, too, that they [creatures] are related to Him who created them, in the same way as the numbers are related to the One which is prior to two, and which is the principle, origin and source of numbers, as we have shown in our treatise on arithmetic.
— Ikhwan al-Safa
Rasa'il. In Seyyed Hossein Nasr, Science and Civilisation in Islam (1968), 155-6.
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Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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