omne ignotum pro magnifico est

Latin quotation from Tacitus
om·​ne ig·​no·​tum pro mag·​ni·​fi·​co est | \ ˌȯm-ne-ig-ˈnō-ˌtu̇m-prō-mäg-ˈni-fi-ˌkō-est How to pronounce omne ignotum pro magnifico est (audio) \

Definition of omne ignotum pro magnifico est

: everything unknown is taken as grand : we exaggerate the importance or difficulty of the unknown