The importance of being idle

"The Importance of Being Idle" is the title of a song by Oasis,
but it is also a good piece of advice in this world of ours now-a-days these days. (now-a-days sounds weird here) 

We live in a fast-paced, world-shrinking, environment. Bridges are now replaced
by networks of cables that retreat into the earth but link people from every corner of the world (corner of the world is an English idiom).
Flashing lights, endless sounds, people always attached to the world wide web through their phones,
headphones permanently grafted to the insides of a persons ears. We seem to have the
constant need to be stimulated. Which leaves a bigger problem that grows where we don't notice. (this word makes a bit more sense here) 
The ability to sit still.
To be able to observe.
The importance of being idle.

It is important sometimes to do nothing at all. As babies, we learn everything we need in life 
by watching our parents. They keep us close by and show us what we need to do, and after enough watching,
we do it. But only by doing very little, or even nothing, can we do everything.

Very very good! Just a few word choices that seemed off, but overall good.