The Sky is not the limit...
This is an old saying, I have been hearing this words since I was a boy.
It basically means there is no limit to what you can achieve, a popular saying the motivational speakers use in wooing their audience.
It is assumed the sky is above us, and it limits us from going beyond. You need oxygen outside this sphere, when you get to space, you'll need oxygen. So, do not limit your accomplishment. I even wonder why the sky is in the context.
Some even say we should reach for the skies.
These things change with time,and it will be bad to depend on them for survival.
One of my siblings use to say, I should aim way higher than I hope to attain. So that when I fall, I will still have a higher ground. Food advise.
So, do not limit yourself with the sky or anything around you, just do the best you can. You'll definitely meet your goals.
Thank you for your time...

