“Experience can never be undone, or knowledge unlearned.”— Ronald Frame Related Quotes “At the simplest level, economics can better show us the consequences of our actions. Less simple are cases in which we don’t have the knowledge to predict the full consequences. Global warming and climate change are examples.”— Edmund Phelps “And if anyone has trouble understanding that, well, they can kiss my ass.”— Isabel Quintero “As a vessel is known by the sound, whether it be cracked or not; so men are proved, by their speeches, whether they be wise or foolish.”— Demosthenes