Alan Deutschman in "Change or Die" wrote:

People are blind to their own faults...but their flaws are easily seen by everyone around them.

more about A. Deutschman here


also from the same book/author:

Even though change is a vital part of life, people crave a feeling of consistency and continuity.

Neil Smith in "The Twitter Machine, Reflections on Language" wrote:

In linguistics as in politics, revolutions breed animosity as well as new ideas, with the partisans of each side indulging in hostilities against the enemy. While many linguists would dearly love to rid the earth of their rivals, less extreme measures are usually resorted to, with the combatants restricting themselves to vilification and verbal snipping.