Bacon
Animals are such agreeable friends—they ask no questions, they pass no criticisms.
George Eliot
Except in cases of necessity, which are rare, leave your friend to learn unpleasant truths from his enemies; they are ready enough to tell them.
Oliver Wendell Holmes
A true friend will appear such in leaving us to act according to our intimate conviction,—will cherish this nobleness of sentiment, will never wish to substitute his power for our own.
William Ellery Channing
The man who prefers his dearest friend to the call of duty will soon show that he prefers himself to his dearest friend.
F. W. Robertson