The famous second Mishna of Pirkeh Abot teaches that the world stands on three "pillars": Torah, Aboda (service of G-d), and Gemilut Hasadim (dispensing kindness). These three "pillars" are embodied by our three patriarchs – Abraham, Yishak and Yaakob. Abraham was the paragon of kindness, devoting his life to helping others. Even after undergoing Berit Mila at an advanced age, he sat outside in the scorching heat looking for people who needed hospitality. He spared no efforts in seeking to help any person who required assistance. Yishak, who was placed on an altar and nearly sacrificed, represents the highest standards of "Aboda," serving Hashem, living one's life in complete subservience to the Almighty and being prepared to make whatever sacrifices He demands. Finally, Yaakob Abinu embodies the quality of diligent Torah study, having spent the first decades of his life fully immersed in Torah learning. In light of this parallel, it seems that the Mishna's list of three "pillars" is presented out of order. We would have perhaps expected the Mishna to list the "pillars" in the order of the three Abot (patriarchs) – beginning with Hesed, followed by Aboda, and culminating with Torah, corresponding to the order of the Abot – Abraham, Yishak and Yaakob. The answer, perhaps, is that the Mishna wanted to emphasize that we need to learn Torah in order to achieve the other two pillars. Without Torah knowledge, we will not have the information we need to serve Hashem. A person who does not learn Torah will decide on his own how to pray, and how to perform Misvot. He will just make up his service of Hashem. We need to learn Torah in order to know how to perform "Aboda," how to serve Hashem in the right way. This is true also of Hesed. We might think that Hesed is instinctive and intuitive, that we can figure out on our own when and how to help other people. But this, too, is mistaken. The Torah guides us not only with regard to our service of Hashem, but also with regard to Hesed, explaining to us the right way to help people. We need to learn what our responsibilities and obligations are, when we are supposed to help, and what kind of help we are to offer. We find an example in the beginning of Parashat Emor, where the Torah presents a series of laws relevant to the Kohanim. A Kohen is not permitted to come in contact with a dead body, except in the case of the death of an immediate family member. Of course, we know that tending to the burial of the deceased is a precious Misva. But without learning Torah, we would not have known that for a Kohen, this is actually a sin, unless he is dealing with the remains of a family member. Moreover, a Kohen Gadol is not permitted to come in contact with a dead body even in the case of a deceased family member – but he is allowed, and even required, to tend to the burial of a Met Misva, a body that has nobody else to bury it. This is just one example of how we need the Torah to give us the guidelines of when and how to perform kindness. Torah knowledge is indispensable for living a life of Aboda and of Hesed. The "pillar" of Torah is therefore mentioned by the Mishna first – because without it, we can never reach the other two "pillars."