Credula res amor est—Love is a credulous affection. Ovid.
Credula vitam / Spes fovet, et fore cras semper ait melius—Credulous hope cherishes life, and ever whispers to us that to-morrow will be better. Tibull.
Credulity is perhaps a weakness almost inseparable from eminently truthful characters. Tuckerman.
Credulity is the common failing of inexperienced virtue. Johnson.
Creep before you gang (walk). Sc. Pr. 55
Crescentem sequitur cura pecuniam, / Majorumque fames—Care accompanies increasing wealth, and a craving for still greater riches. Hor.
Crescit amor nummi quantum ipsa pecunia crescit—The love of money increases as wealth increases. Juv.
Crescit occulto velut arbor ævo—It grows as a tree with a hidden life. Hor.
Crescit sub pondere virtus—Virtue thrives under oppression. M.
Cressa ne careat pulchra dies nota—Let not a day so fair be without its white mark. Hor.