I Take It To Be True That

It Is The Theory Which Decides What We Can Observe

The Only Mistake In Life Is The Lesson Not Learned.

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.

I Have Always Eaten Animal Flesh With A Somewhat Guilty Conscience.

While It Is True That An Inherently Free And Scrupulous Person May Be Destroyed, Such An Individual Can Never Be Enslaved Or Used As A Blind Tool.