See http://www.ldoceonline.com/dictionary/above_1 Definition#7
Not a teacher.
Student or Learner
A tramp, a gentleman, a poet, a dreamer, a lonely fellow always in hope of romance and adventure. He would have you believe he was a scientist, a musician, a Duke, a polo player. However he is not above robbing a baby of his candy.
What does "above" mean here?
Could you please aknowledge your source? Since you have trouble understanding it, I understand the writing is not yours.
Please be aware that I'm neither a native English speaker nor a teacher.