"That sounds right selfish to me." Basil says, timidly. "I mean... It seems to me that... well, you know..." He stammers, trying not to offend the Slytherin hopeful. After all, none of them really knows what makes a person got to one house or another and he didn't want to sterio-type anyone.
"Its just that..." Basil continues, "I think that putting one's own wants before others. And really, there are many other ways to achieve power than knowledge. Take any bully for example. They can all sod off for all I care, but they use intimidation and brute force to gain their power." Basil turns suddenly green as he remembers the end of his school year when he had blackmailed his teacher, gaining power over her through deviousness and his own selfish lack of regard for her privacy and person, putting his own desires first. "Bollocks!" Basil thought to himself. Was he a Slytherin? Or was he stereo-typing them again?
"Being ambitious doesn't mean you are bad, however." He added quickly, just in case he was indeed a Slytherin.