clear thinking

Is there any criminal exploit left that combines fresh air, physical daring, clear thinking, and a matter of social justice?

At the same time, I think fear clouds clear thinking and is often used cynically toward a political aim.

Neither do large deeds and very clear thinking—which, stout hearts being commoner than unmuddled brains, is lucky for us.

He must be a clear-thinking, conscientious, practical man; and it will be impossible for him to fail in his undertaking.

The blast of pure gas in his face revived him for an instant, and in that instant of clear thinking his plan was formed.

Lack of clear thinking—that, as Daphne had said, was probably what was wrong with nearly every one.

It was the deliberate act of a man habituated to clear thinking and correct action.