The following types of text can be engraved on the engraving pen:

1. Thank you: You can engrave some sentences to thank the teacher for their hard work, such as "Thank you for your hard work." Thank you for your dedication and selfless dedication, students.”

2. Teacher's famous quotes: If the teacher has some favorite quotes or special beliefs, you can choose to engrave them on the pen, such as "Continuous self-improvement and great virtue" etc.

3. Blessings: You can also engrave some blessings, such as "May you have peace, happiness and health in your life."

4. Names of students and teachers: You can also engrave the names of you and the teacher, as well as the year of graduation to record this special moment.

5. Special days: such as the teacher’s birthday, or the graduation date of your class, etc., can also be engraved on the pen.

When choosing what words to engrave, the most important thing is to be sincere and able to express your gratitude to the teacher. Hopefully this gift will help you create a deeper connection with your teacher.