1.   One of the main tenets of behaviourism is that behaviour can be shaped through reinforcement by reward.

2.   Again and again, in the stores you see a silhouette shaped through the middle and flared at the hemline.

3.   For example, a stone he claims was a tool actually may just be an ancient rock oddly shaped through the natural geological process, critics say.

4.   So long as there was the ghetto, institutional anti-Semitism or war with Arabs, survival strategies shaped through millennia dictated cohesion.