He thoroughly mastered their principles, and is able to see when his masters are not true to themselves.
Aquinas, however, meant that a man who has thoroughly mastered one good book can be dangerous as an opponent.
You may be going on to new material before thoroughly mastering previous material.
These pieces all show Richard as an excellent composer who had thoroughly mastered counterpoint and harmony.
Reeling back, Dave landed in a chair and sprawled there, staring up at the man who had so thoroughly mastered him.
Scientific bodies, willing to thoroughly master and observe the governing laws, could readily obtain evidence similar to that presented in this volume.
Then, a few minutes later, having digested his instructions and thoroughly mastered the manoeuvre, I would proceed to issue my orders.
Blocking transmissions... my dear woman, I thoroughly mastered that trick a century ago.
And in the realm of wine he has so thoroughly mastered, he does not claim any more than he deserves.
This is an advanced variation, only to be attempted when the basic form of a tailwhip is thoroughly mastered.