Adversity Introduces A Man To Himself.

Compound Interest Is The Eighth Wonder Of The World. He Who Understands It, Earns It ... He Who Doesn't ... Pays It.

I Received Your Letter Of June 10th. I Have Never Talked To A Jesuit Priest In My Life And I Am Astonished By The Audacity To Tell Such Lies About Me. From The Viewpoint Of A Jesuit Priest I Am, Of Course, And Have Always Been An Atheist.

It Is Abhorrent To Me When A Fine Intelligence Is Paired With An Unsavory Character.

The Longing To Behold This Pre-established Harmony [of Phenomena And Theoretical Principles] Is The Source Of The Inexhaustible Patience And Perseverance With Which Planck Has Devoted Himself ... The State Of Mind Which Enables A Man To Do Work Of This Kind Is Akin To That Of The Religious Worshiper Or The Lover; The Daily Effort Comes From No Deliberate Intention Or Program, But Straight From The Heart.

There Two Things That Are Infinite, Human Stupidity And The Universe, I Don't Know About The Universe