From Kahlil Gibran

From THE PROPHET
By Kahlil Gibran

Your children are not your children.
They are the sons and daughters of life's longing
for itself.

They come through you but not from you,
And though they are with you yet they belong not to
  you.

You many give them your love but not your thoughts,
For they have their own thoughts.

You may house their bodies but not their souls,
For their souls dwell in the house of tomorrow, which
  you cannot visit, not even in your dreams.

You may strive to be like them, but seek not to
  make them like you.

For life goes not backward nor tarries with yesterday.
You are the bows from which your children as living
  arrows are sent forth.

The archer see the mark upon the path of the infinite,
  and he bends you with His might that His arrows
  may go swift and far.

Let your bending in the archer's hand be for gladness;
For even as He loves the arrow that flies, so He loves
  also the bow that is stable.