1 A Review......................................................208 2 The Germs of Sâ@mkhya in the Upani@sads.......................211 3 Sâ@mkhya and Yoga Literature..................................212 4 An Early School of Sâ@mkhya...................................213 5 Sâ@mkhya kârikâ, Sâ@mkhya sûtra, Vâcaspati Mis'ra and Vijñâna Bhiksu..........................................................222 6 Yoga and Patañjali............................................226 7 The Sâ@mkhya and the Yoga doctrine of Soul or Purusa..........238 8 Thought and Matter............................................241 9 Feelings, the Ultimate Substances.............................242 10 The Gunas.....................................................243 11 Prak@@rti and its evolution...................................245 12 Pralaya and the disturbance of the Prak@rti Equilibrium.......247 13 Mahat and Ahamkâra............................................248 14 The Tanmâtras and the Paramâñus...............................251 15 Principle of Causation and Conservation of Energy.............254 16 Change as the formation of new collocations...................255 17 Causation as Satkâryavâda (the theory that the effect potentially exists before it is generated by the movement of the cause)...................................................257 18 Sâ@mkhya Atheism and Yoga Theism..............................258 19 Buddhi and Purusa.............................................259 20 The Cognitive Process and some characteristics of Citta.......261 21 Sorrow and its Dissolution....................................264 22 Citta.........................................................268 23 Yoga Purificatory Practices (Parikarma).......................270 24 The Yoga Meditation...........................................271 CHAPTER VIII THE NYÂYA-VAISESIKA PHILOSOPHY