In an interview last week, Mr. Barry ruminated about the nature of bad songs and why they take permanent root in the brain.

There was almost immediately a temporary root exploit available, and as of 1/28 there is a permanent root.

Physically, though, Mr. Rogel never put down permanent roots.

We settled in Miami and put down permanent roots in our community.

Democracy took permanent root in countries where fascism once ruled.

Rather, they say, a free press is having a hard time establishing permanent roots.

Its redevelopment will send a powerful message that the second Harlem renaissance has deep and permanent roots in the community.

Another goal, she said, is to make sure a new weekly half-hour series about religion and ethics takes permanent root nationally.

The school stands today as a unique institution in the country where multidisciplinary and interdisciplinary teaching and research in life sciences have established permanent roots.

Bo had inherited her mother's hankering for permanent roots, so Nelson built Ralph a church right here in town.