When I think of ambitious people I think of dreamers.
I also feel that an ambitious person is a confident one.
In the duration of Acts 1 and 2, Macbeth, under the influence of Lady Macbeth and his own ambition, has changed from being a rational, level-headed man to one of questionable integrity.
Evver since I was a little boy, I have always been ambitious.
But since I am the kind of person who believes that the sky is the limit, and if you put your mind to it you can accomplish anything, I choose to stay away from the disadvantages of ambition for the time being.