Kill if you must, but never hate: <br />Man is but grass and hate is blight, <br />The sun will scorch you soon or late, <br />Die wholesome then, since you must fight. <br /> <br />Hate is a fear, and fear is rot <br />That cankers root and fruit alike, <br />Fight cleanly then, hate not, fear not, <br />Strike with no madness when you strike. <br /> <br />Fever and fear distract the world, <br />But calm be you though madmen shout, <br />Through blazing fires of battle hurled, <br />Hate not, strike, fear not, stare Death out!<br /><br />Robert Graves<br /><br />http://www.poemhunter.com/poem/hate-not-fear-not/
