Piercing, humbling wisdom from a saintly monk.

“If you have a zeal for learning, also have a zeal for toil and suffering. Mere knowledge only puffs up a person [1 Cor. 8:1].”

St. Mark Eremita, Concerning Those Who Imagine That They Are Justified by Works (400s) [from Popular Patristics, Vol. 37, pg. 114]