David Bruman is addressed in correspondence from the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson, as a dedicated individual involved in the activities of Chabad, particularly in the realm of youth engagement and leadership.
The Rebbe's letter to David Bruman, dated 23rd of Teves, 5715 (1955), responds warmly after a period of silence, expressing pleasure at receiving Bruman's recent letter and noting the reported improvement in the youth group under his care. The Rebbe invokes the teaching of the Rebbe Maharash, "If good is good, is better not better?" to encourage Bruman—and by extension, all Chassidim and even the women and girls of Chabad—to continually strive for greater achievement and spiritual growth.
The Rebbe emphasizes the importance of broadening one's expectations and efforts, preparing oneself as a "larger vessel" to receive Divine blessings. He notes that while success is granted from Above, it often awaits the individual's readiness and willingness to expand their own capacities, referencing the verse "Harchav Picha Va'amaleihu" ("Enlarge your mouth and I will fill it"). The Rebbe blesses Bruman with continued success and encourages him to pursue such expansion that even the Torah itself would recognize it as true growth, not merely by human standards.