'lofty concept' is correct and usable in written English.
You can use this phrase to describe a concept that is complex, challenging, and/or abstract. For example, "The lofty concept of quantum mechanics can be difficult to grasp."
It's a lofty concept, and hard to find in one place or one person.
That lofty concept includes articles by writers on their thoughts about Iraq.
He isn't automatically drawn to lofty concept or structural convolution, which can make him seem old-fashioned when compared with his peer group.
An anonymous juror from one of Mr. Schwarz's previous trials told Pacifica Radio this year that some officers used that lofty concept to sabotage the investigation.
-VAL KILMER, as Jim Morrison in The Doors (1991 film) Get Real WOODROW WILSON HAS received plaudits from many historians for his lofty concept of world peace.
"The rule of law is not just a lofty concept to which we should aspire only when convenient.
To some, the debate about the veil has less to do with lofty concepts than survival.
"He was able to translate lofty concepts into ideas understandable by the general public".
In that respect they are more like other lofty concepts (e.g., truth and justice), and less like the ordinary objects of daily life.
In Wonder, Mr Browne uses precepts as a way of introducing his students to lofty concepts having to do with the way they interact with the world.
There are only what Duncan movingly calls the "durable habits" of loving and caring for one another, which sustain us through all the barbarism wreaked by brutish impulses hiding behind lofty concepts of how to live a good life.
