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

"The constant changes in the scientific worldview show how important it is to remain open to new ideas."

"The quantum of action, as I called it, was a purely formal assumption and I really did not think much about it."

"The human mind is the most complex and mysterious thing in the universe."

"An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: it rarely happens that Saul becomes Paul. What does happen is that its opponents gradual…"