—Henry D. Thoreau

There is nothing sweeter than a warm friendship, but continual emotion embitters.

—Joseph Reinach

Dear is my friend—but from my foe, as from
My friend, comes good; the first what I can do
Shows, and the second what I should.
—Schiller

Every friend is to the other a sun, and a sunflower also. He attracts and follows.

—Jean Paul Richter

Kindred weaknesses induce friendships as often as kindred virtues.

—C. N. Bovee

One must shed his blood to serve his friends and to avenge himself upon his enemies; otherwise he is not worthy of the name of man.

—Voltaire