We lose some friends for whose loss we regret more than we grieve; and others whose departure causes us grief, but not regret.
—La Rochefoucauld
Friendship is a word the very sight of which in print makes the heart warm.
—Augustine Birrel
You, who forget your own friends, meanly to follow after those of a higher degree, are a snob.
—Thackeray
Friendship is a plant that loves the sun, thrives ill under clouds.
—A. Bronson Alcott
To have the same desires and the same aversions is assuredly a firm bond of friendship.
—Sallust