Dear teacher, wishing you a very best birthday. Thank you for being the world’s best mentor! I just feel so lucky to have you as my teacher.
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My career has been a challenging and enjoyable ride because you were there to guide me all throughout. Wonderful birthday!
It is always you who lead is into the right direction of success, now it is time for us to lead you on the right direction to the pub. Best birthday!
I wish you all the success and happiness that you deserve, plus a raise on my pay if you are feeling particularly generous today. Happy birthday!