Good quotations, like good thoughts, are true wealth. – Annie E. Lancaster, quoted in Day’s Collacon: An Encyclopædia of Pros
Nevertheless, a maxim does not necessarily become a proverb. Many grubs never grow to butterflies; and a maxim is only a proverb in its caterpillar stage—a candidate for a wider sphere and longer flight than most are destined to attain. – “Proverbs Secular and Sacred,” The North British Review, February 1858