A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it.

Scientific discovery and scientific knowledge have been achieved only by those who have gone in pursuit of it without any practical purpose whatsoever in view.

Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: 'Ye must have faith.'

Insight must precede application.

The history of all times and nations teaches us that exactly in the naïve, unshakable belief, furnished by religion in active life of believers, originate the most intense motives for the most significant creative performance, not only in the field of arts and sciences but also in politics.

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.

Science advances one funeral at a time.