The qualities of Nature are destructible, but not Nature herself. The learned, therefore, call Nature indestructible. By undergoing changes Nature works as the cause of Creation. The results appear and disappear, but not original Nature. Hence also is Nature called indestructible. Thus have I told you the conclusions of the fourth Science based on the principles of inference and having Liberation for its end.
गुणक्षयत्वात् प्रकृतिः कर्तृत्वादक्षयं बुधाः। एषा तेऽऽन्वीक्षिकी विद्या चतुर्थी साम्परायिकी॥