"Lofty ideas" refers to grand or ambitious thoughts or concepts, often aiming high or having noble purposes. It implies having an elevated or high-reaching vision or goals. Full definition
I'm not saying that I don't have practically the most lofty ideas of anyone writing today, but what difference does that make? (poets.org)
Using too many words or chasing too - lofty ideas usually leads to rash promises, self - deception and ideology. (religion-online.org)
Many aspiring entrepreneurs already have great and lofty ideas of how to start and run profitable businesses, but there is almost always a snag in these well thought out ideas... capital. (profitableventure.com)