- If we cannot accommodate a viewpoint in a friend without resorting to unkindness, how can we hope to heal the terrible problems of our planet? I no longer think that any principle or opinion is worth anything if it makes you unkind or intolerant.
- Karen Armstrong, The Spiral Staircase : My Climb Out of Darkness (2004).
- She hath tied
Sharp-tooth'd unkindness, like a vulture here.
- Unkindness may do much;
And his unkindness may defeat my life,
But never taint my love.
- In nature there's no blemish but the mind;
None can be call'd deform'd but the unkind.
- When streams of unkindness, as bitter as gall,
Bubble up from the heart to the tongue,
And Meekness is writhing in torment and thrall,
By the hands of Ingratitude wrung, —
In the heat of injustice, unwept and unfair,
While the anguish is festering yet,
None, none but an angel or God can declare
"I now can forgive and forget."
- Martin Farquhar Tupper, Forgive and Forget, lines 1-8.
Hoyt's New Cyclopedia Of Practical Quotations 
- Quotes reported in Hoyt's New Cyclopedia Of Practical Quotations (1922), p. 828.
- As "unkindness has no remedy at law," let its avoidance be with you a point of honor.
- Hosea Ballou, MS, Sermons.
- My lodging it is on the cold ground, and very hard is my fare,
But that which troubles me most, is the unkindness of my dear.
- Hard Unkindness' alter'd eye,
That mocks the tear it forced to flow.
- Thomas Gray, Eton College, Stanza 8.
- Since trifles make the sum of human things,
And half our misery from our foibles springs;
Since life's best joys consist in peace and ease,
And though but few can serve, yet all may please;
Oh, let th' ungentle spirit learn from hence,
A small unkindness is a great offence.
- Hannah More, Sensibility.