Does my thesis sound ok? Intelligence is a word that describes the ability of an individual to perform desired tasks well.
It's a bit wordy.
Intelligence is an individual's ability to perform desired tasks well.
But ... are you sure about that?
http://www.merriam-webster.com/dictionary/intelligence
http://www.answers.com/topic/intelligence
Are you getting ready to write a definition essay? If so, be sure to read all of this very careefully:
http://grammar.ccc.commnet.edu/grammar/composition/definition.htm