We must know that war is common to all and strife is justice, and that all things come into being and pass away through strife.
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

““ Homer was wrong in saying: ‘Would that strife might perish from among gods and men!’ He did not see that he was praying for the destruction of the universe; for, if his prayer were heard, all things would pass away. ” We must know that war is common to all and strife is justice, and that all things come into being and pass away through strife. He regards the soul as a mixture of fire and water, the fire being noble and the water ignoble. The soul that has most fire he calls “ dry. ” “ The dry soul is the wisest and best. ” “ It is pleasure to souls to become moist. ”” source