I'm not sure why you assume he didn't make any mistakes, or even that he didn't make any serious one. Just because he was ultimately successful doesn't mean the

I'm not sure why you assume he didn't make any mistakes, or even that he didn't make any serious one. Just because he was ultimately successful doesn't mean there was a lot more behind it than pure "right-decision-making" or skill. How many great people never finished their works because of something completely outside of their control?