Where You See Difficulty, I See Opportunity.

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.

Problems Cannot Be Solved By Thinking Within The Framework In Which The Problems Were Created.

The Satisfaction Of Physical Needs Is Indeed The Indispensable Pre-condition Of A Satisfactory Existence, But In Itself It Is Not Enough. In Order To Be Content, Men Must Also Have The Possibility Of Developing Their Intellectual And Artistic Powers To Whatever Extent Accords With Their Personal Characteristics And Abilities.

Force Always Attracts Men Of Low Morality, And I Believe It To Be An Invariable Rule That Tyrants Of Genius Are Succeeded By Scoundrels.

Don't Listen To The Person Who Has The Answers; Listen To The Person Who Has The Questions.