Kedze Descartes hovoril, ze substancia ma len jeden atribut, a ten atribut je esencia substancie.... A number of scholars have found it hard to understand how one substance could have multiple attributes each one of which is /what the intellect perceives … as constituting its essence./ Either Spinoza is claiming that the one substance has multiple essences, or that the attributes are not really the essence of the substance but only seem to be.