“By denying scientific principles, one may maintain any paradox.”

“No government has the right to decide on the truth of scientific principles, nor to prescribe in any way the character of the questions investigated. Neither may a government determine the aesthetic value of artistic creations, nor limit the forms of literacy or artistic expression. Nor should it pronounce on the validity of economic, historic, religious, or philosophical doctrines. Instead it has a duty to its citizens to maintain the freedom, to let those citizens contribute to the further adventure and the development of the human race.”

“The game of science is, in principle, without end. He who decides one day that scientific statements do not call for any further test, and that they can be regarded as finally verified, retires from the game.”

“There are three stages of scientific discovery: first people deny it is true; then they deny it is important; finally they credit the wrong person.”

“There are three stages in scientific discovery. First, people deny that it is true, then they deny that it is important; finally they credit the wrong person.”

“I maintain that the cosmic religious feeling is the strongest and noblest motive for scientific research.”