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… — Albert Einstein Copy Share Image
![“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…” quote by Albert Einstein](https://sms4smile.com/quotes/img-quotes/eb8/albert-einstein-33_effort_the-longing-to-behold-this-pre-establish_1850774.jpg)