Why wasn't the Buddha a solipsist?

Don't get me wrong, I'm not asking because I consider myself a great person etc., Chakravartin , but why didn't the Buddha take solipsism seriously, perhaps before his complete enlightenment? If he's so great then how can it be that we, everyone else, are so little? Was it, perhaps, because he was born a prince, or there was no history of solipsism in India at the time, or what, really? I think it *could* just beyond the powers of imagination to get inside a mahasattva's head, so to speak.