Robert J. Marzano Quotes (Author of Classroom Instruction Robert J. Marzano quotes (showing 1-25 of 25) “Characteristics of sound feedback include that it should be frequent, give students a clear picture of their progress and how they might improve, and provide encouragement.” “No amount of further research will provide an airtight model of instruction. Education Robert Marzano Quotes, Quotations & Sayings 2019 Education Robert Marzano Quotes, Quotations & Sayings 2018. You know, sometimes all you need is twenty seconds of insane courage. Just literally twenty seconds of just embarrassing bravery. And I promise you, something great will come of it. -Benjamin Mee.