“My own beliefs are that the road to a scientific discovery is seldom direct, and that it does not necessarily require great expertise. In fact, I am convinced that often a newcomer to a field has a great advantage because he is ignorant and does not know all the complicated reasons why a particular experiment should not be attempted.”

“Success does not necessarily involve great intellect, or great position, or great wealth; it has to do with inner integrity. Remember that.”

“Hold back your mind from pride, for pride comes only from ignorance. The man who does not know thinks that he is great, that he has done this or that great thing; the wise man knows that only God is great, that all good work is done by God alone.”

“Reason, in fact, is a thing of God, inasmuch as there is nothing which God the Maker of all has not provided, disposed, ordained by reason — nothing which He has not willed should be handled and understood by reason. All, therefore, who are ignorant of God, must necessarily be ignorant also of a thing which is His, because no treasure-house at all is accessible to strangers. And thus, voyaging all the universal course of life without the rudder of reason, they know not how to shun the hurricane which is impending over the world.”
Quippe res dei ratio quia deus omnium conditor nihil non ratione providit disposuit ordinavit, nihil [enim] non ratione tractari intellegique voluit. [3] Igitur ignorantes quique deum rem quoque eius ignorent necesse est quia nullius omnino thesaurus extraneis patet. Itaque universam vitae conversationem sine gubernaculo rationis transfretantes inminentem saeculo procellam evitare non norunt.

“This is great stuff, but does it have to be so complicated?”

“The idea that as I walk in this direction my watch goes slightly slower and I am contracted in the direction of motion and my mass has increased slightly does not correspond to everyday experience. …the reason that it does not correspond to common sense is that we are not in the habit of traveling close to the speed of light. We may one day be in that habit, and then the Lorentz transformations will be natural, intuitive.”

“Scientific discovery is a private event, and the delight that accompanies it, or the despair of finding it illusory, does not travel. One scientist may get great satisfaction from another’s work and admire it deeply; it may give him great intellectual pleasure; but it gives him no sense of participation in the discovery, it does not carry him away, and his appreciation of it does not depend on his being carried away. If it were otherwise the inspirational origin of scientific discovery would never have been in doubt.”

“Great physics does not automatically imply complicated mathematics!”

“No, the Great Man does not boast himself sincere, far from that; perhaps does not ask himself if he is so: I would say rather, his sincerity does not depend on himself; he cannot help being sincere! The great Fact of Existence is great to him. Fly as he will, he cannot get out of the awful presence of this Reality. His mind is so made; he is great by that, first of all. Fearful and wonderful, real as Life, real as Death, is this Universe to him. Though all men should forget its truth, and walk in a vain show, he cannot. At all moments the Flame-image glares in upon him; undeniable, there, there!—I wish you to take this as my primary definition of a Great Man. A little man may have this, it is competent to all men that God has made: but a Great Man cannot be without it.”

“If a great city or a great state should fall as the result of an apparent "accident", the there would be a general reason why it required only an accident to make it fall.”