Hoyt & Roberts, comps. Hoyt’s New Cyclopedia of Practical Quotations. 1922.
Probability
Probability is the very guide of life.
Cicero—De Natura. 5. 12. Quoted by Bishop Butler. Also used by Hooker—Ecclesiastical Polity. Bk. I. Ch. VIII., and Bk. II. Ch. VII. Found in Locke—Essays. Bk. IV. Ch. XV. Also in Hobbes’ Leviathan.