All That Passes For Knowledge Can Be

If An Opinion Contrary To Your Own Makes You Angry, That Is A Sign That You Are Subconsciously Aware Of Having No Good Reason For Thinking As You Do.

If An Opinion Contrary To Your Own Makes You Angry, That Is A Sign That You Are Subsciously Aware Of Having No Good Reason For Thinking As You Do. [...] The Most Savage Controversies Are Those About Matters As To Which There Is No Good Evidence Either Way. Persecution Is Used In Theology, Not In Arithmetic, Because In Arithmetic There Is Knowledge, But In Theology There Is Only Opinion. So Whenever You Find Yourself Getting Angry About A Difference Of Opinion, Be On Your Guard; You Will Probably Find, On Examination, That Your Belief Is Going Beyond What The Evidence Warrants.

Patriotism Which Has The Quality Of Intoxication Is A Danger Not Only To Its Native Land But To The World, And "my Country Never Wrong" Is An Even More Dangerous Maxim Than "my Country, Right Or Wrong."

The Man Who Pursues Happiness Wisely Will Aim At The Possession Of A Number Of Subsidiary Interests In Addition To Those Central Ones Upon Which His Life Is Built.

In All Affairs It's A Healthy Thing Now And Then To Hang A Question Mark On The Things You Have Long Taken For Granted.