accurate knowledge

To demand accurate knowledge of the subject before an author begins work upon it narrows the field from which themes may be drawn.

All the country on the other side of the Hypanis is allowed to be very fertile, but we have no accurate knowledge of it.

I faced the problem with a thirst for accurate knowledge, and my passion was not for bloodshed but for brotherhood.

It was very natural, as she was situated, that Sarah should acquire an accurate knowledge of her father's affairs.

But the author of the Plays and Poems must have had a very large and a very accurate knowledge of the law.