(ב) שִׁמְעוֹן הַצַּדִּיק הָיָה מִשְּׁיָרֵי כְנֶסֶת הַגְּדוֹלָה. הוּא הָיָה אוֹמֵר, עַל שְׁלשָׁה דְבָרִים הָעוֹלָם עוֹמֵד, עַל הַתּוֹרָה וְעַל הָעֲבוֹדָה וְעַל גְּמִילוּת חֲסָדִים:
(2) Shimon the Righteous was one of the last of the men of the great assembly. He used to say: the world stands upon three things: upon the Torah, upon sacred service, and upon acts of loving kindness.
Devotion to God, rather than burnt offerings.
Although all these mitzvot are of Rabbinic origin, they are included in the Scriptural commandment Leviticus 19:18: "Love your neighbor as yourself." That charge implies that whatever you would like other people to do for you, you should do for your comrade in the Torah and mitzvot.
Rabbi Mordecai Kaplan
… It is very difficult, after we get our daily fill of news about what goes on in the world, to retain our love for man as man. He seems to us a most disgusting creature. There is no conceivable crime or folly from which he is free… [Yet] We must … habituate ourselves in that redemptive love for man which knows how to forgive… [judging] him, not for the evil he has done, but for the good he has in him to do…
This faith in the human being, this right to expect him to rise to greater heights of the spirit, is the way in which we must learn to love the humanity or divinity in ourselves and, by the same token, the humanity or divinity in our neighbor…
From With Heart in Mind by Alan Morinis
Love in Jewish tradition is incomplete if it is only a sentiment. It requires deeds in order to be actualized …. It is not enough to send out comforting vibrations to someone in mourning; we need to bake a kugel and then take it in hand to the house of mourning... Love feeds action and is fed by it.