Please all, and you will please none.

Aesop

The loveliest faces are to be seen by moonlight, when one sees half with the eye and half with the fancy.

Persian Proverb

Soy un anciano y he conocido muchos problemas, pero la mayoría de ellos nunca sucedieron.

Mark Twain

I have learned to use the word impossible with the greatest caution.

Werner von Braun

Expecting the world to treat you fairly because you are a good person is a little like expecting the bull not to attack you because you are a vegetarian.

Dennis Wholey

Believe none of what you hear and half of what you see.

Benjamin Franklin