make your hay before the fine weather leaves you.
More Irish Proverbs:
Death is the poor man's doctor.Irish
When the sky falls we'll catch larks.
Irish
One beetle recognises another.
Irish
When the old woman is hard pressed, she has to run.
Irish
Speak to the devil and you'll hear the clatter of his hooves.
Irish
Without pressing too little or too hard, hold tight the reins for he's a fool who would not get value from a borrowed horse.
Irish