[quote=Yog Sothoth]
true, but since it says they tend to be like that means that it is not how all Slytherins act, which is why characters like Isaak and Verlin can be sorted into the house. In my opinion as long you have ambition to be a great witch or wizard, and you show determination in achieving greatness then you belong in Slytherin.
[/quote]

Ambition to be a great wizard isn't all that's needed. Your opinion has nothing to do with actual cannon or the people that get sorted into the house. Harry was almost sorted into Slytherin, in fact he only was sorted into Gryffindor simply because he asked. People who have strong ambition but aren't cunning, guileful, shrewd, or display other typical characteristics of a Slytherin would more realistically sorted into Gryffindor.

I'm tired though, and its a bit late, so I'm off to bed. Night all.