Vedanta as per Shankaracharya
This is the conclusive statement of Vedanta: The jiva and the whole universe are nothing but Brahman, and that liberation means abiding in the indivisible Reality (Brahman). The Vedas are testimony to the non-duality of Brahman. (Shankaracharya, Vivekachudamani, 478)
Vedanta as per Ramanujacharya
Thus, as the supreme Brahman—who is the inexhaustible mine
of innumerable auspicious qualities unsurpassable in excellence, who is free
from evil, who is possessed of infinite glorious powers, who is the boundless
ocean of amiability, affection, and beauty, who is the whole with the
individual selves as his parts (and thus subservient to him)—is meditated upon
as being related (to the individul self ), he becomes the object of unsurpassed
love and himself leads the individual soul to Brahman (his own self ). (Ramanujacharya,
Vedartha-sangraha, 243)
According to Madhvacharya, Sri Hari is the Supreme Being and
the world truly real. The individual souls are different from and subservient to
Hari, and are also mutually distinct. Mukti is the experience of pure bliss (in
the presence of Hari) and bhakti the means to it. Perception, inference, and
the Vedas are the means of valid knowledge, (but) the knowledge of Hari is
available only through the Vedas.