Half a loaf is better than no bread Link to proverb.
A watched pot never boils Link to proverb.
You can't make an omelette without breaking eggs Link to proverb.
What you lose on the swings you gain on the roundabouts.
Might is right.
It's no use shutting the stable door after the horse has bolted Link to proverb.
A volunteer is worth twenty pressed men.