To open a shop is easy, to keep it open is an art

He that has not bread to spare should not keep a dog

If I keep a green bough in my heart, the singing bird will come

Of a dead leopard we keep the skin, of man his reputation

Large demands on oneself and little demands on others keep resentment at bay

Keep your chin up

Keep your broken arm inside your sleeve

Easy to keep the castle that was never besieged

Easy to believe in Heaven’s law, but so hard to keep