perspicacity

Under his rough exterior Soult hid great powers of business, a keen perspicacity, and much tact.

His spirit is of a superhuman perspicacity; his mind is tenacious and full of all knowledge that man may have.

As the sequel showed, he clearly demonstrates his own perspicacity and knowledge of human nature.

Lynx-eyed perspicacity, inexhaustible contrivance, prompt ingenuity,—a man very dangerous to play with at games of skill.

He even asserted that those at the head of affairs in England had shown great perspicacity and a clear insight into the future.