Quotes of Frederick II

“He who defends everything defends nothing.”

“The greatest and noblest pleasure which we have in this world is to discover new truths, and the next is to shake off old prejudices.”

“All religions must be tolerated… for every man must get to heaven in his own way.”

“I begin by taking. I shall find scholars later to demonstrate my perfect right.”

“If my soldiers were to begin to think, not one of them would remain in the army.”

“My people and I have come to an agreement which satisfied us both. They are to say what they please, and I am to do what I please.”

“Religion is the idol of the mob; it adores everything it does not understand.”

“What is the good of experience if you do not reflect?”


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Quotes of Nicolaus Copernicus

“For I am not so enamored of my own opinions that I disregard what others may think of them.”

“I am aware that a philosopher’s ideas are not subject to the judgment of ordinary persons, because it is his endeavour to seek the truth in all things, to the extent permitted to human reason by God.”


“Finally we shall place the Sun himself at the center of the Universe.”


“Therefore, when I considered this carefully, the contempt which I had to fear because of the novelty and apparent absurdity of my view, nearly induced me to abandon utterly the work I had begun.”


“So far as hypotheses are concerned, let no one expect anything certain from astronomy, which cannot furnish it, lest he accept as the truth ideas conceived for another purpose, and depart from this study a greater fool than when he entered it.”


“To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.”


“First of all, we must note that the universe is spherical.”


“For a traveler going from any place toward the north, that pole of the daily rotation gradually climbs higher, while the opposite pole drops down an equal amount.”


“Moreover, since the sun remains stationary, whatever appears as a motion of the sun is really due rather to the motion of the earth.”


“Near the sun is the center of the universe.”


“Not a few other very eminent and scholarly men made the same request, urging that I should no longer through fear refuse to give out my work for the common benefit of students of Mathematics.”


“The earth together with its surrounding waters must in fact have such a shape as its shadow reveals, for it eclipses the moon with the arc of a perfect circle.”


“Those who know that the consensus of many centuries has sanctioned the conception that the earth remains at rest in the middle of the heavens as its center, would, I reflected, regard it as an insane pronouncement if I made the opposite assertion that the earth moves.”


“Accordingly, since nothing prevents the earth from moving, I suggest that we should now consider also whether several motions suit it, so that it can be regarded as one of the planets. For, it is not the center of all the revolutions.”


“Although all the good arts serve to draw man’s mind away from vices and lead it toward better things, this function can be more fully performed by this art, which also provides extraordinary intellectual pleasure.”



“For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study.”


“I shall now recall to mind that the motion of the heavenly bodies is circular, since the motion appropriate to a sphere is rotation in a circle.”


“In so many and such important ways, then, do the planets bear witness to the earth’s mobility.”


“More stars in the north are seen not to set, while in the south certain stars are no longer seen to rise.”


“I can easily conceive, most Holy Father, that as soon as some people learn that in this book which I have written concerning the revolutions of the heavenly bodies, I ascribe certain motions to the Earth, they will cry out at once that I and my theory should be rejected.”


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Quotes of Julius Caesar

“Veni, vidi, vici; I came, I saw, I conquered.”

“It is better to create than to learn! Creating is the essence of life.”


“As a rule, men worry more about what they can’t see than about what they can.”


“Experience is the teacher of all things.”


“Cowards die many times before their actual deaths.”


“I love the name of honor, more than I fear death.”


“It is easier to find men who will volunteer to die, than to find those who are willing to endure pain with patience.”


“No one is so brave that he is not disturbed by something unexpected.”


“If you must break the law, do it to seize power: in all other cases observe it.”


“What we wish, we readily believe, and what we ourselves think, we imagine others think also.”


“Fortune, which has a great deal of power in other matters but especially in war, can bring about great changes in a situation through very slight forces.”


“I have lived long enough both in years and in accomplishments.”


“It is not these well-fed long-haired men that I fear, but the pale and the hungry-looking.”


“Men in general are quick to believe that which they wish to be true.”


“I had rather be first in a village than second at Rome.”


“Caesar’s wife must be above suspicion.”


“Which death is preferably to every other? “The unexpected”.”


“In war, events of importance are the result of trivial causes.”


“Men freely believe that which they desire.”


“Men are nearly always willing to believe what they wish.”

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Quotes of Albert Einstein

“You have to learn the rules of the game. And then you have to play better than anyone else.”


“The difference between stupidity and genius is that genius has its limits.”


“No problem can be solved from the same level of consciousness that created it.”


“Try not to become a man of success, but rather try to become a man of value.”


“Science without religion is lame, religion without science is blind.”


“The only source of knowledge is experience.”


“Reality is merely an illusion, albeit a very persistent one.”


“A person who never made a mistake never tried anything new.”


“A question that sometimes drives me hazy: am I or are the others crazy?”


“Only two things are infinite, the universe and human stupidity, and I’m not sure about the former.”


“Anyone who doesn’t take truth seriously in small matters cannot be trusted in large ones either.”


“Great spirits have always encountered violent opposition from mediocre minds.”


“Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.”


“The true sign of intelligence is not knowledge but imagination.”

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Quotes of Leonardo da Vinci

“The greatest deception men suffer is from their own opinions.”


“Iron rusts from disuse; water loses its purity from stagnation… even so does inaction sap the vigor of the mind.”


“He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.”


“I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.”



“Nothing strengthens authority so much as silence.”


“Simplicity is the ultimate sophistication.”


“He who wishes to be rich in a day will be hanged in a year.”


“You can have no dominion greater or less than that over yourself.”


“Men of lofty genius when they are doing the least work are most active.”