Musar על ברכות 68:17

Laws concerning property damage, financial compensations, etc. in the portion of משפטים are listed right after the Ten Commandments to show that all legislation emanates from G–d. When our sages in Avot described תורה, עבודה, גמילות חסדים "Torah, service of the Lord, deeds of loving kindness" as well as אמת, דין, and שלום , "truth, justice and harmony" as being the pillars which are the foundation that all civilization is based on, that is what they had in mind. אמת and תשובה are category A; עבודה and תפלה are category B; תורה and דין are category C; צדקה, and גמילות חסדים are category D, the final category. There remains the pillar of שלום, peace, harmony, which must be viewed as the "seal" of the previous four categories listed. Unless there is שלום, none of the other categories can achieve their purpose. This is what the prophet Zachariah 8,19, has in mind when he says "והאמת והשלום, אהבו!" "love truth and peace!" He states that success and happiness are contingent on the presence of these factors. It is written concerning the repentant sinner "peace, peace to the distant as well as to the near one," which our sages interpret as referring to people who were once far removed from our tradition but have found their way back (Isaiah 57,19). The "seal" of the עבודה, the priestly blessing, in our daily prayers is שלום, peace, as is the concluding benediction in our principal prayer, the עמידה. We find a similar thought expressed in Isaiah 32,17: "The work of the righteous shall be peace."