Good / Smart
paradox - A situation or idea that seems strange because it involves two aspects that are very different and seem to contradict each other, and both may be true.

It's a paradox that often it's the busiest people that have to most time to contribute to the needs of others.
astute - Ability to understand things quickly and clearly, and to use the knowledge well
From a very early age, Gail instinctively knew everything about business, and and after college she proved to be an astute business woman, and became a millionaire before the age of 30.