11.   For an intellectual exercise, however, the play is masterly.

12.   From this discovery it was a fairly simple intellectual exercise to envisage a divergent chain reaction with a vast release of energy.

13.   Some newspaper articles interpreted the sessions as amounting to seances, but Mrs. Clinton and Houston have insisted they were simply engaging in an intellectual exercise.

14.   Some newspaper articles interpreted the sessions as amounting to seances, though both Mrs. Clinton and Houston have insisted they were simply engaging in an intellectual exercise.

15.   The answer is that we live in an age of specialization, and football and basketball have attempted to position themselves as deep forms of intellectual exercise.

16.   The idea of sex as an intellectual exercise may sound wrong-headed itself.

17.   The purity of the intellectual exercise at Plato is rare to behold.

18.   To him it was just all an intellectual exercise.

19.   What counted around the Heller family table was conversation and intellectual exercise.

20.   While her French colleagues often approach dance as an intellectual exercise, she works with emotion and plays with emotions.