Is Siddhartha's doctrine right or wrong?

Siddhartha actually says that although he has had many wise teachers, he follows no doctrine. He says that he can't teach wisdom through doctrine, it doesn't work that way. Siddhartha says he cant even teach wisdom at all, it must be found by the seeker. Siddhartha talks about time as an illusion and truth being a paradox. He makes a lot of sense but I need to find a nice tree to sit under and think about this. I probably still won't know if he is right or wrong because, like the wise one said, I have to figure it out for myself.