Words are powerless to express my gratitude to you...

Words are powerless to express my gratitude to you. I thank you from the bottom of my heart for never letting me down. My gratitude to you for all you have done, which I will never forget. I truly appreciate you and your time you spent helping me in many occasions.

Thank you very much for the course. I enjoyed every minute of your lecture as well as your marvelous sense of humor.
You are always very kind, patient, helpful and truly care about your profession and your students.

Networking is my favourite subject now