And Brendel's ravishing restraint in the sonata's short second movement, on the same recording, is an unforgettable lesson about the role of silence in music.

It has been an unforgettable lesson in humanity.

It was, Mr. Clinton writes, the most uplifting and unforgettable lesson from junior high.

Ahead lay the trap in Time and Space which had been prepared as an unforgettable lesson for himself and all of mankind.

That is what Pakistan's tough language was about yesterday, too, that if India does anything, we will teach it an unforgettable lesson.

He had never seen dogs fight as these wolfish creatures fought, and his first experience taught him an unforgettable lesson.

Mr. Scarabino, 43, said the re-enactors hoped to pass on unforgettable lessons that cannot be garnered from a static museum display.

It was an unforgettable lesson.

But their three-and-a-half-year effort provided an unforgettable lesson in how difficult and stressful infertility treatment can be.

Yassin further promised that Hamas would teach Israel an "unforgettable lesson" as a result of the assassination attempt.