Some minds are like concrete, all mixed up and permanently set.
— Unknown

We never taste happiness in perfection, our most fortunate successes are mixed with sadness.
Pierre Corneille mixed quote

I'm not confused, I'm just well mixed.
— Robert Frost

Information's pretty thin stuff unless mixed with experience.
— Clarence Day

Organizating is what you do before you do something, so that when you do it, it's not all mixed up.
— A. A. Milne