Camarón que se duerme, se lo lleva la corriente.

“The shrimp that falls asleep gets carried away by the current.”

Negligence or complacency causes you to lose your opportunity.

No hay mal que por bien no venga.

“There is no bad from which some good does not come.”

Even misfortune can carry a hidden benefit or lesson.

A caballo regalado no se le mira el diente.

“Do not look a gift horse in the mouth.”

Be grateful for what is given freely instead of scrutinizing it for flaws.

Del dicho al hecho hay mucho trecho.

“There is a long stretch between saying and doing.”

Talking about something is far easier than actually accomplishing it.

El que mucho abarca, poco aprieta.

“He who grasps too much holds little tightly.”

Trying to do too many things at once weakens the result of each one.

En boca cerrada no entran moscas.

“Flies do not enter a closed mouth.”

Staying silent when appropriate keeps you out of trouble.