„Galileo Galilei” változatai közötti eltérés
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* '''My dear [[w:Johannes Kepler|Kepler]], what would you say of the learned here, who, replete with the pertinacity of the asp, have steadfastly refused to cast a glance through the [[w:telescope|telescope]]? What shall we make of this? Shall we laugh, or shall we cry?'''
* '''Philosophy is written in this grand book— I mean the universe— which stands continually open to our gaze, but it cannot be understood unless one first learns to comprehend the language in which it is written. It is written in the language of mathematics, and its characters are triangles, circles, and other geometric figures, without which it is humanly impossible to understand a single word of it; without these, one is wandering about in a dark labyrinth (1623)'''