Rambam - Sefer HaMitzvos: Positive Mitzvah 11: Positive Mitzvah 11

Positive Mitzvah 11: Studying and Teaching the Torah
Deuteronomy 6:7 "And you shall teach them diligently to your children."

Is your father a doctor? An accountant? A computer programmer?

The Torah actually encourages him to be a teacher, as well!

Besides the profession your father may have chosen, he is commanded to teach his children Torah.

He must also try to teach other Jews the Torah, because students are also called "children."

When you grow up, this same Mitzvah obligates you to study Torah yourself and to teach it to others.

When I first arrived at Yeshiva, I threw myself entirely into the experience. Soon I realized I had lost my balance. It was at that time that I heard these words of the Rebbe and they guided me:
The Talmud tells, "Four entered into the orchard (the mystical teachings). One died, one went mad and one became a heretic. Rabbi Akiva entered in peace and left in peace".
Why was Rabbi Akiva capable of leaving in peace? Because he entered in peace: He had made peace between his physical and spiritual worlds, between his body and his soul, and saw purpose in them both. So when he entered the spiritual he had in mind his return to the physical. And when he re-entered the physical he brought with him of the spiritual.

From: Bringing Heaven Down to Earth by Tzvi Freeman - tzvif@aol.com