Abstract: An individual has thisness if there could be a different individual who had all the same properties (in a very wide sense of ‘property’) – i.e. if the identity of indiscernibles does not apply to it. Souls have thisness, material objects might have thisness, but times and places do not have thisness.

Keywords: identity of indiscernibles, individuals, Leibniz, material object, property, soul, thisness,