I profess myself a Mazda-worshipper, a Zoroastrian, having vowed it and professed it. I pledge myself to the well-thought thought, I pledge myself to the well-spoken word, I pledge myself to the well-done action.
Yasna 12:8
“The Talmud states, "Do not be daunted by the enormity of the world's grief. Do justly now, love mercy now, walk humbly now. You are not obligated to complete the work, but neither are you free to abandon it.