Once bitten, forever smitten.
More English Proverbs:
You win some, you lose some.English
Learn weeping and thou shalt gain laughing.
English
You must look where it is not as well as where it is.
English
All clever men are birds of prey.
English
When the cow has been sold with firmness you may relax for a while and go for a better one.
English
He who eats until he is ill must fast until he is well.
English