A closed mouth catches no flies.
This Italian proverb means that we should all be alert to grab the opportunities in our life. This proverb refers to the obvious nature of the Frog which keeps its mouth and when some insect passes close to its mouth… the frog rolls its tongue and catches the insect. So the frog has to keep its mouth open and sit still to catch its prey. If its mouth is closed it cannot catch any fly.
The real meaning of the proverb is that we should all be like the frog ever alert and ready to catch hold of any opportunity to come up in life. If we are lazy and do not make use of the opportunity to come up in life we will not succeed. It is similar to the frog keeping its mouth closed and dying of hunger.
Nowadays we find most of the young people idle. They just indulge in unwanted activities and in criticizing others rather than involving in sincere and useful endeavor. They lose their valuable opportunities even when they come to him. Such a person experiences more disgust and despair in life. He, who keeps himself active, can make use the opportunity fully and can make his fortune instead of miring his fortune.