"The man who has had a spiritual awakening is a man of courage."

"My Führer! I am most deeply shaken by the message that my son Erwin has been sentenced to death by the People's Court. The acknowledgement for my achievements in service of our fatherland, which you, …"

"The pioneer in a new field of knowledge is never a popular man."

"The highest task of physics is to arrive at the knowledge of the human mind."

"Truth never triumphs—its opponents just die out."