Established Essential

Famous quotes containing the words established and/or essential:

“Evolution is the law of policies: Darwin said it, Socrates endorsed it, Cuvier proved it and established it for all time in his paper on “The Survival of the Fittest.” These are illustrious names, this is a mighty doctrine: nothing can ever remove it from its firm base, nothing dissolve it, but evolution.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)

“Revolution as an ideal concept always preserves the essential content of the original thought: sudden and lasting betterment.”
—Johan Huizinga (1872–1945)