The sole means of uniting men is their union in the truth. And therefore the more sincerely men strive toward the truth, the nearer they get to unity.
But how can men be united in the truth or even approximate to it, if they do not even express the truth they know, but hold that there is no need to do so, and pretend to regard as truth what they believe to be false?
 Leo Tolstoy, The Kingdom of God Is Within You (1894). copy citation

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Author Leo Tolstoy
Source The Kingdom of God Is Within You
Topic unity union
Date 1894
Language English
Reference
Note Translated by Constance Garnett
Weblink http://www.gutenberg.org/cache/epub/4602/pg4602-images.html

Context

“But what good or useful thing can come of all these improvements, if men do not speak and act in accordance with what they believe to be the truth? The condition of men is the result of their disunion. Their disunion results from their not following the truth which is one, but falsehoods which are many. The sole means of uniting men is their union in the truth. And therefore the more sincerely men strive toward the truth, the nearer they get to unity. But how can men be united in the truth or even approximate to it, if they do not even express the truth they know, but hold that there is no need to do so, and pretend to regard as truth what they believe to be false? And therefore no improvement is possible so long as men are hypocritical and hide the truth from themselves, so long as they do not recognize that their union and therefore their welfare is only possible in the truth, and do not put the recognition and profession of the truth revealed to them higher than everything else.” source