Por desgracia, en el mundo la verdad anda escondida, por los rincones disfrazada con los nombres de filosofía, ciencia y franqueza, mientras que la m… - Miguel de Cervantes

You are taking the wrong sow by the ear.

"It is a balsam," answered Don Quixote, "the receipt of which I have in my memory, with which one need have no fear of death, or dread dying of any wound; and so when I make it and give it to thee thou hast nothing to do when in some battle thou seest they have cut me in half through the middle of the body — as is wont to happen frequently, — but neatly and with great nicety, ere the blood congeal, to place that portion of the body which shall have fallen to the ground upon the other half which remains in the saddle, taking care to fit it on evenly and exactly. Then thou shalt give me to drink but two drops of the balsam I have mentioned, and thou shalt see me become sounder than an apple."

You should know, Sancho, that a man is not worth more than any other if he does not do more than any other.