Dear [Interviewer’s Name]: 

Thank you for your letter of [date of rejection letter]. 

After careful consideration, I regret to inform you that I am unable to accept your refusal to offer me employment with your firm.  This year I have had been particularly fortunate in receiving an unusually large number of rejection letters. With such a varied and promising field of candidates, it is impossible for me to accept all refusals. 

Despite [Firm’s Name]’s outstanding qualifications and previous experience in rejecting applicants, I find that your rejection does not meet with my needs at this time.  Therefore, I will initiate employment with your firm immediately following graduation.  I look forward to seeing you then. 

Best of luck in rejecting future candidates. 

Sincerely,
[Your Name]

One Liner

I came, I saw, I forgot what I was doing. Retraced my steps, got lost on the way back. Now I have no idea what’s going on.