Abundance begets indifference.
More German Proverbs:
The cat's play is the mouse's death.German
Nothing bolder than the miller's shirt, that every morning collars a thief.
German
The wind keeps not always in one quarter.
German
Security is nowhere safe.
German
Were he to throw a groat on the roof, it would come down a dollar.
German
Don't budge, if you sit at ease.
German