Examples from literature

• For twenty-five centuries it has been the "credo" of the profession, and in many universities it is still the formula with which men are admitted to the doctorate. 
• The word "creed"—derived from the Latin " credo, I believe"—is, in its ecclesiastical sense, used to denote a summary or concise statement of doctrines formulated and accepted by a church. 
• To those who love the poets most, who care most for their ideals, this little book ought to be the one indispensable book of devotion, the credo of the poetic faith.