1.   But a cardinal tenet of organic farming is that diversity is as essential to biological health as it is to cultural health.

2.   It is a cardinal tenet of the governmental philosophy that bears his name, Kemalism.

3.   Already Monday, Prodi ruled out wage increases pegged to inflation, a cardinal tenet of the Communist Refoundation party.

4.   Already Monday, Prodi ruled out wage increases pegged to inflation, a cardinal tenet of the Communist Refoundation.