Mistakes are almost always of a sacred nature. Never try to correct them. On the contrary: rationalize them, understand them thoroughly. After that, it will be possible for you to sublimate them.
Salvador Dali

Nothing is at last sacred but the integrity of your own mind.
Ralph Waldo Emerson

Nothing is more noble, nothing more venerable than fidelity. Faithfulness and truth are the most sacred excellences and endowments of the human mind.
Marcus Tullius Cicero

A man is ethical only when life, as such, is sacred to him, that of plants and animals as that of his fellow men, and when he devotes himself helpfully to all life that is in need of help.
Albert Schweitzer

There are four questions of value in life, Don Octavio. What is sacred? Of what is the spirit made? What is worth living for and what is worth dying for? The answer to each is the same. Only love.
Lord Byron

Your own mind is a sacred enclosure into which nothing harmful can enter except by your permission.
Arnold Bennett

And I say the sacred hoop of my people was one of the many hoops that made one circle, wide as daylight and as starlight, and in the center grew one mighty flowering tree to shelter all the children of one mother and one father.
Black Elk

And while I stood there I saw more than I can tell and I understood more than I saw; for I was seeing in a sacred manner the shapes of all things in the spirit, and the shape of all shapes as they must live together like one being.
Black Elk