A new scientific truth is usually not propagated in such a way that opponents become convinced and discard their previous views. No, the adversaries eventually die off, and the upcoming generation is familiarised anew with the truth.

Scientific work will never stop, and it would be terrible if it did. If there were no more problems, you would put your hands in your pockets and your head on a pillow and would work no more. In science rest is stagnation, rest is death.

An experiment is a question which science poses to Nature and a measurement is the recording of Nature's answer.

A new truth always has to conend with many difficulties. If it were not so, it would have been discovered much sooner.

In all my research I have never come across matter. To me the term matter implies a bundle of energy which is given form by an intelligent spirit.

Experiment is the only means of knowledge at our disposal. Everything else is poetry, imagination.

There is a real world independent of our senses; the laws of nature were not invented by man, but forced on him by the natural world. They are the expression of a natural world order.