I love you as certain dark things are loved, secretly, between the shadow and the soul.
Anna and the French KissIn certain books—some way in the first few paragraphs you know that you have met a brother.
The Art SpiritGood problems and mushrooms of certain kinds have something in common; they grow in clusters.
How to Solve It: A New Aspect of Mathematical MethodMy Head of House said I lacked certain necessary qualities...like the ability to behave myself.
Harry Potter and the Order of the PhoenixTo have faith is to be sure of the things we hope for, to be certain of the things we cannot see.
Holy Bible: King James VersionNow faith is being sure of what we believe in and certain of what we do not see. (Heb. 11:1)
Holy Bible: New International Version