Recognizing that there are two core duties of a fiduciary — loyalty, and care — is not just an idle theoretical exercise. (kitces.com)
The early inventors studied the work of Scottish physicist James Clerk Maxwell, who had formulated a set of equations — «Maxwell's equations» — that expressed the basic laws of electricity and magnetism, but as a purely theoretical exercise in understanding how nature works. (discovermagazine.com)
It's hard, and thankfully a mere theoretical exercise, to consider how good The Hurt Locker would be without the incredible central performance by Jeremy Renner. (mutantreviewers.wordpress.com)