Wherever Mathematics is mixed up with anything, which is outside its field, you will find attempts to demonstrate these merely conventional propositions a priori, and it will be your task to find out the false deduction in each case. Carl Gustav Jacob Jacobi
But you could not have pure love or pure lust nowadays. No emotion was pure, because everything was mixed up with fear and hatred. Their embrace had been a battle, the climax a victory. It was a blow struck against the Party. It was a political act. George Orwell
Don't liken me to that [SOB]. Anybody that lets his public policies be mixed up with religious prejudice is a plain [GD] fool. Huey Long
...I simply don't want the poems mixed up with my life or opinions or picture or any other regrettable concomitants. I look like a bear and live in a cave; but you should worry. Randall Jarrell
Please look out for the few thorns that might have got mixed up with the roses. Mulk Raj Anand
Who gets mixed up with garbage will be eaten by pigs. Hungarian Proverb