A kosher fish is halachically defined by its ability to swim upstream against the tide. Rabbi Pinchas Stolper z”l swam upstream throughout his life, but no more so than as the Founding Director of NCSY. Rabbi Stolper developed, pioneered, and engaged in kiruv beginning in the early 1960s, when the Orthodox Jewish establishment was skeptical that a committed Torah lifestyle would resonate outside of the New York area. The Maharam Schick observed that the mitzvah of hashavas aveidah includes hashavas neshamos. Rabbi Stolper engaged in both hashavas aveidah and hashavas neshamos as the father, pioneer, and visionary of kiruv for adolescents in America