Seamus Heaney

If you have the words, there's always a chance that you'll find the way.

It is always better
to avenge dear ones than to indulge in mourning.
For every one of us, living in this world
means waiting for our end. Let whoever can
win glory before death. When a warrior is gone,
that will be his best and only bulwark.

Walk on air against your better judgement.

I can't think of a case where poems changed the world, but what they do is they change people's understanding of what's going on in the world.

History says, Don’t hope
On this side of the grave,
But then, once in a lifetime
The longed-for tidal wave
Of justice can rise up,
And hope and history rhyme