Children of Speculation

[Semicircle]

There are generations of people,
knocking on the door of today.
We cannot stop them,
from entering our world.
The people of the future depend on us to be born,
what we think about today determines the kind of people they become.
We are no longer responsible just for ourselves,
but for the security of children who have not yet to come.

Punctuation could definitely help this piece.

Also, you rhymed 'become' with 'come'