"This world tendency to make history the vehicle of certain definite political, social and economic ideas, which reign supreme in each country for the time being, is like a cloud, at present no bigger than a man’s hand, but which may soon grow in volume, and overcast the sky, covering the light of the world by an impenetrable gloom. The question is therefore of paramount importance, and it is the bounden duty of every historian to guard himself against the tendency, and fight it by the only weapon available to him, namely by holding fast to truth in all his writings irrespective of all consequences. A historian should not trim his sail according to the prevailing wind, but ever go straight, keeping in view the only goal of his voyage—the discovery of truth."