The 19th of Tevet is the yahrtzeit (anniversary of the passing) of American Jewish philanthropist Judah Touro (1775-1854).
Link: Judah Touro: Philantropist Par Excellence
R. Aryeh Leib Heller was the rabbi of the city of Stryi, in what is now Western Ukraine. His works—Ketzot Hachoshen, Avnei Milu’im, and Shav Shemateta—are known for their clear, logical analysis of Talmudic texts and ideas, and are staples that are studied in yeshivas throughout the world.
We are not waiting for some great revelation from above to save us from our incompetence as guardians of this world and put everything in order.
Rather, we are waiting to see the sun rise over everything we have done, to see the fruits of our labors blossom in an eternal spring.
It will come upon the world as a spring rain upon a plowed and seeded field. Plow and sow now, while there is still time.