No burden is so heavy for a man to bear as a succession of happy days.
Those [scientists] who dislike entertaining contradictory thoughts are unlikely to enrich their science with new ideas.
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.
The man who cannot occasionally imagine events and conditions of existence that are contrary to the causal principle as he knows it will never enrich his science by the addition of a new idea.
All matter originates and exists only by virtue of a force.
Science does not mean an idle resting upon a body of certain knowledge; it means unresting endeavor and continually progressing development toward an end which the poetic intuition may apprehend, but which the intellect can never fully grasp.
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.
Religion and natural science are fighting a joint battle in an incessant, never-relaxing crusade against skepticism and dogmatism, against disbelief and against superstition, and the rallying cry in this crusade has always been, and will always be, 'On to God.'
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.
Thus, the photons which constitute a ray of light behave like intelligent human beings: out of all possible curves they always select the one which will take them most quickly to their goal.
Farsighted theologians are now working to mine the eternal metal from the teachings of Jesus and to forge it for all time.
What seems today inconceivable will appear one day, from a higher stand point, quite simple and harmonious.
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 all his thought on one single point which is his whole world for the moment.
A scientist is happy, not in resting on his attainments but in the steady acquisition of fresh knowledge.
Physical changes take place continuously, while chemical changes take place discontinuously. Physics deals chiefly with continuous varying quantities, while chemistry deals chiefly with whole numbers.
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.
Science advances funeral by funeral
The assumption of an absolute determinism is the essential foundation of every scientific enquiry.
Science enhances the moral value of life, because it furthers a love of truth and reverence-love of truth displaying itself in the constant endeavor to arrive at a more exact knowledge of the world of mind and matter around us, and reverence, because every advance in knowledge brings us face to face with the mystery of our own being.
Science progresses not by convincing the adherents of old theories that they are wrong, but by allowing enough time to pass so that a new generation can arise unencumbered by the old errors.
The highest court is in the end one's own conscience and conviction-that goes for you and for Einstein and every other physicist-and before any science there is first of all belief. For me, it is belief in a complete lawfulness in everything that happens.
We are in a position similar to that of a mountaineer who is wandering over uncharted spaces, and never knows whether behind the peak which he sees in front of him and which he tries to scale there may not be another peak still beyond and higher up.
It is impossible to make a clear cut between science, religion, and art. The whole is never equal simply to the sum of its various parts.
We have no right to assume that any physical laws exist, or if they have existed up until now, that they will continue to exist in a similar manner in the future.
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