Simcha Blass Simcha Blass Simcha Blass (November 27, 1897 – July 18, 1982; ) was a Polish-Israeli engineer and inventor who developed the drip irrigation system with his son Yeshayahu. Simcha Blass was born in Warsaw, Poland, which was then part of the Russian Empire, to an Orthodox Jewish family. He was active in the Jewish self-defense units organized in Warsaw to defend Jews during the end of World War I. His engineering studies in Warsaw were interrupted by the Polish-Soviet War and completed after that war. During the war, he was recruited to the Polish Army, there he invented for the
Simcha Zissel Ziv been fluent in three orders of the Talmud, to such a level where he knew every comment of Rashi and Tosafot word for word. He was also fluent in all four divisions of the Shulchan Aruch and could locate any given Halacha within it with pinpoint precision. Simcha Zissel taught that the whole world is a classroom where one can learn to improve one’s character and increase one’s belief in God. Simcha Zissel would frequently quote Socrates, who said that "true wisdom is in knowing you know nothing." Simcha Zissel offered his students the following advice: "Take time. Be exact.