She must be an unprincipled one, or she could not have used your brother so.
But your mind is warped by an innate principle of general integrity, and therefore not accessible to the cool reasonings of family partiality, or a desire of revenge.
Their tempers were mild, but their principles were steady, and while his parent so expressly forbade the connection, they could not allow themselves to encourage it.
She had not been withstanding them on selfish principles alone, she had not consulted merely her own gratification; that might have been ensured in some degree by the excursion itself, by seeing Blaize Castle; no, she had attended to what was due to others, and to her own character in their opinion.
There are no more uses of "principle" in the book.
Show samples from other sources
I accept as a basic principle that all people are precious and should be treated with equal dignity.
One guiding principle is that everyone should be treated fairly.