Ramanuja accepted that the Vedas are a reliable source of knowledge, then critiqued other schools of Hindu philosophy, including Advaita Vedānta, as having failed in interpreting all of the Vedic texts. He asserted, in his "Sri Bhāshya", that "purvapaksin" (previous schools) selectively interpret those Upanishadic passages that support their monistic interpretation, and ignore those passages that support the pluralism interpretation. There is no reason, stated Ramanuja, to prefer one part of a scripture and not other, the whole of the scripture must be considered on par. One cannot, according to Ramanuja, attempt to give interpretations of isolated portions of any scripture. Rather, the scripture must be considered one integrated corpus, expressing a consistent doctrine. The Vedic literature, asserted Ramanuja, mention both plurality and oneness, therefore the truth must incorporate pluralism and monism, or qualified monism.