Tat Tvam Asi  

"The phrase in question is the well-known tat tvam asi ('that art thou') which Schopenhauer discovered upon reading Duperron's Latin translation of the Upanishads (Oupnek'hat). 'In reference to conduct', wrote Schopenhauer, 'I do not know " --Being Bengali: At Home and in the World

"Therefore, although others have laid down moral principles which they gave out as precepts for virtue and laws necessarily to be observed, I cannot do this, as I have said already, because I have no "ought" or law to hold before the eternally free will. On the other hand, in reference to my discussion, what corresponds and is analogous to that undertaking is that purely theoretical truth, and the whole of my argument can be regarded as a mere elaboration thereof, namely that the will is the in-itself of every phenomenon, but itself as such is free from the forms of that phenomenon, and so from plurality. In reference to conduct, I do not know how this truth can be more worthily expressed than by the formula of the Veda already quoted: Tat tvam asi ("This art thou!"). Whoever is able to declare this to himself with clear knowledge and firm inward conviction about every creature with whom he comes in contact, is certain of all virtue and bliss, and is on the direct path to salvation."