Spinoza and Ecology1977
Every being strives to preserve and develop its specific essence or nature (…) there are infinite ways in which Nature thus expresses itself (…) The basic urge is to gain in extent and intensity of self-causing. The term “self-realisation” is therefore better than “self-preservation”, the first suggesting activeness and creativity and the lastter a passive, conservative attitude.
Arne Naess. 1977. Spinoza and ecology, in Hessing, Siegfried (ed.) Speculum Spinozanum 1677-1977, London: Routledge and Kegan Paul, p. 420