All our contemporary philosophers perhaps without knowing it are looking through eyeglasses that Baruch Spinoza polished. Spinoza was a philosopher who earned his livelihood by grinding lenses.
Heinrich HeineNothing is sillier than this charge of plagiarism. There is no sixth commandment in art. The poet dare help himself wherever he lists, wherever he finds material suited to his work. He may even appropriate entire columns with their carved capitals, if the temple he thus supports be a beautiful one. Goethe understood this very well, and so did Shakespeare before him.
Heinrich HeineGod will forgive me the foolish remarks I have made about Him just as I will forgive my opponents the foolish things they have written about me, even though they are spiritually as inferior to me as I to thee, O God!
Heinrich Heine