Write a summary of the following passage (Max5-6sentances).

Tolerance is the virtue of the civilized age. It is the virtue that helps to put up with those who are not like us, who have different ways and opinions, different ideas and outlook on life. It enables us to see always the side of things, to suffer fouls with patience, deal with fanatics without losing temper. In earlier days difference in religion led to persecution;  Difference in politics created bad blood; non-conforming in social matters led to ostracism; and difference in opinions ended in blows. This is intolerance,  the refusal to be just and fair-minded. How many thousands of men and woman in Europe were burnt to death for religious differences. A whole community might be massacred in the name god. Even today persecution and purges for political reason have not been banished from society. All this intolerance comes from narrowness and blind self-conceit. It is the result or dogmatism, a belief that there is only one attitude that is right and of an unwillingness to consider all questions dispassionately with the help of reason.