This large number of 'similar words and sounds' (+25,000), contrary to what some language learners and teachers think, is not limited to advantageous coincidences; and contrary to what some linguists think, it is not limited to Latin and Greek derivations present in scientific terms. The statistical data provided by this extensive research support the assertion that cognates represent at least 25% of the unique English written words met by Romance language speakers, and vice versa.