"Demand perfection of yourself and you'll seldom attain it. Fear of making a mistake is the biggest single cause of making one. Relax - pursue excellence, not perfection."

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It is called the real presence, not in an exclusive sense, as though other forms of presence were not real, but by reason of its excellence. It is the substantial presence by which Christ is made present without doubt, whole and entire, God and man.

— Pope Paul VI