The sign is determined at the moment I use it and for the object of which it must form a part. For this reason I cannot determine in advance signs which never change, and which would be like writing: that… — Henri Matisse Copy Share Image
I define a Sign as anything which is so determined by something else, called its Object, and so determines an effect upon a person, which effect I call its Interpretant, that the latter is thereby mediately determined by the former. — Charles Sanders Peirce Copy Share Image
