This paper aims to elucidate the meaning of causa sui in
Spinozas philosophy. The first philosopher who used this concept
in a positive way was not Spinoza but Descartes. However, Spinoza
was the first and the only philosopher who separated its use from
the discourse of proving the existence of God, and so detheologized
it. The term causa sui in the first part of Ethics signifies three
things: First, it criticizes the transcendence of God; second, it
provides the basis for immanent causality; third, it shows the
non-reflexiveness of God or Nature