1. glass: mirror.

2. of one date: the same age.

9. be of thyself so wary: i.e., take good care of yourself, avoid all harm.

10. will: i.e., will be wary of myself, will take care of myself.

11. Bearing thy heart: i.e., while I carry your heart with me. chary: carefully.

12. nurse: i.e., nursemaid, like the Nurse in Romeo and Juliet, who was Juliet's surrogate mother.

13. Presume not on: i.e., do not count on getting back.