My experience with the pensions inquiry had already taught me one invaluable lesson.

In the process, we political appointees have been taught some invaluable lessons.

Another aspect of the teacher/pupil scenario included a field trip on how to look at women, an invaluable lesson.

"I think this entire experience has taught her the invaluable lesson of humility."

There was one invaluable lesson he learned in the hallways of his school.

Well, I suppose it was an invaluable lesson, and one that profited me greatly in the future.

Some companies learn invaluable, unexpected lessons by performing at the Joyce.

Just before he left the people, they gave him an invaluable lesson on desert water, including an important "map" to assist its location.

It taught him an invaluable lesson in the art of dealing with people.

An invaluable lesson: the prevailing sense of economy and respect for nature, two things in disastrously short supply these days.