“Though I may not, like them, be able to quote other authors, I shall rely on that which is much greater and more worthy - on experience, the mistress of their Masters. They go about puffed up and pompous, dressed and decorated with [the fruits], not of their own labours, but of those of others. And they will not allow me my own. They will scorn me as an inventor; but how much more might they - who are not inventors but vaunters and declaimers of the works of others”

Source: Wikiquote