There are three "too much" and three "too little" that can bring a fool down: too much spending and too little money; too much talking and too little knowledge; and too much boasting and too little earnings. (Spanish Proverb)
The wise man does not hang his knowledge on a hook. (Spanish Proverb)
The threshold says nothing but what it hears of the hinge. (Spanish Proverb)
The secret in swimming is to know how to take care of your clothes. (Spanish Proverb)