11.   His bland, controlled demeanor is said by aides and rivals alike to mask fierce competitiveness and intellectual rigor, even arrogance.

12.   In a sense, World War II made me an artist, because it gave him the knowledge that instilled in me this intellectual rigor and appetite.

13.   Intellectual rigor and caution came slowly to Lehner.

14.   That means focusing less on administrative minutiae, and adding intellectual rigor to the often tedious board meetings.

15.   That is, the project aimed to make design subject to the intellectual rigor ostensibly demanded in the practice of philosophy.

16.   That will require sophisticated leadership, unrelenting hard work, intellectual rigor and a firm commitment to reality.

17.   The New Jersey Supreme Court has a history of intellectual rigor and nonpartisanship.

18.   With its woeful management practices, the field was ripe for his intellectual rigor.

19.   Yet, as the Boston show reveals, in one persuasive example after another, an art of intellectual rigor can also be full of sensual delight.

20.   Delight in its intellectual rigors is keeping them there.