In my dreams I always wanted to be everything..A musician, writer,footballer,intellect,doctor,UN secretary general...the list longs.Also I wanted to be expert in atleast 50 languages!
It is estimated that an average human doesn't use his/her brain completely.If we were computers no computer ever can outpower us..But that argument is just theoretical! Limitations are overwhelming.
Out of all you have mentioned 'Thomas Young' fascinates me a lot..Reason being he is comparatively modern..Science and all had sprouted out by then.
But in today's world no one can ever become expert even in their on field.Ocean of knowledge floats on the air.But the era of becoming 'Expert of all' has gone forever!