One-sided truths

To say something that is incorrect is not the worst thing that can happen, for the world itself will soon put one right about it; but it is really serious to regard a one-sided truth as the absolute truth and to persist in so regarding it. […] It is always essential to look at truths not only from the one side but also from the other. The fault of most philosophers is not that they say what is false — in many cases their assertions cannot be refuted because they do state truths — but that they make statements which are due to things having been viewed from one side only. 

Source: Rudolf Steiner – GA 119 – Macrocosm and Microcosm – Lecture 6 – Experiences of Initiation in the Northern Mysteries – Vienna, 26th March 1910