„The Earth is littered with the ruins of empires that believed they were eternal.“

— Camille Paglia
„If… the motion of the earth were circular, it would be violent and contrary to nature, and could not be eternal, since … nothing violent is eternal …. It follows, therefore, that the earth is not moved with a circular motion.“
— Thomas Aquinas
„That God existed before there were human beings on Earth, that He holds the entire world, believers and non-believers, in His omnipotent hand for eternity, and that He will remain enthroned on a level inaccessible to human comprehension long after the Earth and everything that is on it has gone to ruins; those who profess this faith and who, inspired by it, in veneration and complete confidence, feel secure from the dangers of life under protection of the Almighty, only those may number themselves among the truly religious.“
— Max Planck
„Dyspepsy is the ruin of most things: empires, expeditions, and everything else.“
— Thomas De Quincey
„If we ruin the earth, there is no place else to go“
— Carl Sagan
„Elements of empirical language are manipulated in their rigidity, as if they were elements of a true and revealed language. The empirical usability of the sacred ceremonial words makes both the speaker and listener believe in their corporeal presence.“
— Theodor W. Adorno
„I don't believe in empirical science. I only believe in a priori truth.“
— Kurt Gödel
„We have Divine Wisdom in the mortal body. Whatever does harm to the body, ruins the House of the Eternal.“
— Paracelsus