Our Rabbi's Life

Our Rabbi, Ha-Rav Tzvi Yehudah (from Ha-Rav's video blog)
Q: Why did Ha-Rav Tzvi Yehudah not have children?
A: We do not know the secrets of the Creator.
Q: After his wife's death, he did not remarry over the course of approximately forty years. Why didn't he remarry? After all, it is known that it is a great mitzvah, especially for someone who did not fulfill the mitzvah of "Be fruitful and multiply." What did he rely on?
A: We also do not know this.
Q: Is it true that Ha-Rav Tzvi Yehudah's leg was amputated?
A: It is correct.
Q: Did he have cancer?
A: We do not know.
Q: Was this the reason for his death?
A: I do not know. I learned Torah from his mouth from many years to the best of my ability and I arranged many of his talks but he guided us not to engage in the personal details of his life but to learn Torah. He was a very private person and did not relate to us the details of his life.