"He grew up in Texas politics and that's one of the toughest schools around."

Their astronautical recruits had to go through a tough school but it brought results.

It has a name as one of the city's toughest schools.

Lost in the process are proposals to make schools better rather than tougher.

The odds are even greater that they will be assigned to the toughest schools and the most difficult schedules.

It has often been described as "the toughest school in Australia".

"At Proviso, they're known as the toughest school in the city."

Providing incentives to the best teachers to teach in the toughest schools.

The first thing veterans in a tough school tell a new teacher is "don't smile until Christmas."

I went to a private school, a very tough school ruled by men only, and the law of the jungle.