A person who comes into money without effort should use some of it for a Mitzvah, such as acquiring a Torah or writing Tefillin, so that he will be able to retain the rest: Eruvin 64a-b
The term "Yekar [Honor]" refers to the Mitzvah of Phylacteries: Megillah 16b
"Length of Days" as the reward for Phylacteries: Menachot 44a-b
Because the Jews have not martyred themselves for the Mitzvah of Phylacteries, it has not remained strong with their descendants: Shabbat 130a
Phylacteries are considered an "Ot", a Sign Between Hashem and Yisrael: Shabbat 132a
The Mitzvah of Phylacteries, as one of those for which the Jews merited entry into Israel: Kiddushin 37b
Phylacteries are considered "Oz [Strength]" protecting the Jews: Berachot 6a
Hashem puts one who doesn't wear Phylacteries in ex-communication: Pesachim 113b
One who doesn't wear phylacteries is one who sins carelessly [see Ramban to Chullin 5b to explain the term "poshei yisrael b'gufan"]: Rosh HaShanah 17a