"The freedom of thought and speech must be preserved in all circumstances."

"I regard consciousness as fundamental. I regard matter as derivative from consciousness."

"The most important task of science is to liberate man from the illusion that he is the center of the world."

"New scientific ideas never spring from a communal body, however organized, but rather from the head of an individually inspired researcher who struggles with his problems in lonely thought and unites …"

"There is no matter as such. All matter originates and exists only by virtue of a force."