There's a definition to atheism I've read once that I think it's the best way to define what atheism means to me: An atheist doesn't believe in god the same way

There's a definition to atheism I've read once that I think it's the best way to define what atheism means to me: An atheist doesn't believe in god the same way he doesn't believe in santa claus, or werewolves. It's not that he can positively proof god does not exist, only that there's no reason, given current evidences, to believe.