Our Loftiest Ideas Are Rooted In Practical Needs IDEAS Posted: July 8, 2021 2:01 pm Unlike ideas of air, food and water that allow us to think about the everyday resources we need to survive, the venerable notions of knowledge, truth or justice don’t obviously cater to practical needs. – Aeon Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email a link to a friend (Opens in new window)