2 Words to use with shrewd

Shrewd lawgivers have taught men to conceal their natural passions and to limit them by artificial ones, persuading them that renunciation is true happiness, on the ground that through it we attain the supreme goodreputation among, and the esteem of our fellows.

Shrewd maters watch Phyllis and Bessie and Fred, Each smile and each look and each toss of the head, And wonder and ponder and figure and scheme, While fortune and fashion 'gainst love tip the beam.

2 Words to use with  shrewd