The expression “live and learn,” or “you live and learn,” is used to say that one has learned something from an experience that is surprising and usually unpleasant.

For example:

I thought I could trust Bob after all that I did for him, but I couldn’t. Well, live and learn.

She bought an expensive dress that was surprisingly poorly made. It’s disappointing, but you live and learn not to trust every brand. 

I tried to assemble that furniture myself, and it took hours. I should have hired someone, but you live and learn.

I’ll never try to ride my bike in the snow again—live and learn!

Tradução:

“Live and learn” ou “you live and learn” é uma expressão idiomática que significa “vivendo e aprendendo“, indicando que aprendemos com as experiências, especialmente com os erros ou dificuldades que encontramos ao longo da vida.

Atenção:

Em inglês, a frase encontra-se no infinitivo, já em português ela é traduzida no gerúndio.