The search for truth is, as it always has been, the noblest expression of the human spirit. Man's insatiable desire for knowledge about himself, about his environment and the forces by which he is surrounded, gives life its meaning and purpose, and clothes it with final dignity.... And yet we know, deep in our hearts, that knowledge is not enough.... Unless we can anchor our knowledge to moral purposes, the ultimate result will be dust and ashes- dust and ashes that will bury the hopes and monuments of men beyond recovery.