What is True Sacrifice? Sotah 5b

I'd seen this midrash many times in the writings of the Netivot Shalom, my favorite biblical commentator. You can find information on him at http://en.wikipedia.org/wiki/Sholom_Noach_Berezovsky.

I was very excited to find it's original source, in the middle of a long discourse on the evil of excessive pride.

Come and see how great humility is before the Holy One, Praised be G-d. For while the Temple stood, if a person performed an 'Olah' sacrifice, they simply had the merit of the 'Olah,' and if they performed a grain sacrifice, they had the mere merit of that grain sacrifice. However, Scripture regards someone who is humble as if they performed all the sacrifices, as is written (Psalms 51:19) , 'A broken heart is sacrifices to G-d.' (The interpreter uses the plural nature of 'sacrifices' to make this connection.) Furthermore, such a person's prayers will never be despised, as it is written, (Ibid) 'A humble and broken heart, G-d, you shall not despise.'