Reason Quotes

500+ Sourced quotes

Plan for what is difficult while it is easy, do what is great while it is small. The difficult things in this world must be done while they are easy, the greatest things in the world must be done while they are still small. For this reason sages never do what is great, and this is why they achieve greatness.

Because there is a law such as gravity, the universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the universe going.

Stephen Hawking

Mandela taught us the power of action, but he also taught us the power of ideas; the importance of reason and arguments; the need to study not only those who you agree with, but also those who you don't agree with. He understood that ideas cannot be contained by prison walls, or extinguished by a sniper's bullet. He turned his trial into an indictment of apartheid because of his eloquence and his passion, but also because of his training as an advocate. He used decades in prison to sharpen his arguments, but also to spread his thirst for knowledge to others in the movement. And he learned the language and the customs of his oppressor so that one day he might better convey to them how their own freedom depend upon his.

Unless thought is valid we have no reason to believe in the real universe.

Several centuries ago the greatest writer in history described the two most menacing clouds that hang over human government and human society as "malice domestic and fierce foreign war." We are not rid of these dangers but we can summon our intelligence to meet them. Never was there more genuine reason for Americans to face down these two causes of fear. "Malice domestic" from time to time will come to you in the shape of those who would raise false issues, pervert facts, preach the gospel of hate, and minimize the importance of public action to secure human rights or spiritual ideals. There are those today who would sow these seeds, but your answer to them is in the possession of the plain facts of our present condition.

Franklin D. Roosevelt

It is the nature of the artist to mind excessively what is said about him. Literature is strewn with the wreckage of men who have minded beyond reason the opinions of others.

Experience, the interpreter between formative nature and the human race, teaches how that nature acts among mortals; and being constrained by necessity cannot act otherwise than as reason, which is its helm, requires her to act.

Leonardo da Vinci

We are made happy when reason can discover no occasion for it. The memory of some past moments is more persuasive than the experience of present ones. There have been visions of such breadth and brightness that these motes were invisible in their light.

Henry David Thoreau

Saying that what we call our selves consist only of our bodies and that reason, soul, and love arise only from the body, is like saying that what we call our body is equivalent to the food that feeds the body. It is true that my body is only made up of digested food and that my body would not exist without food, but my body is not the same as food. Food is what the body needs for life, but it is not the body itself. The same thing is true of my soul. It is true that without my body there would not be that which I call my soul, but my soul is not my body. The soul may need the body, but the body is not the soul.

Democracy is not something that is static; it's something that we constantly have to work on. [...]democracy is a little messier than alternative systems of government, but that's because democracy allows everybody to have a voice. And that system of government lasts, and it's legitimate, and when agreements are finally struck, you know that nobody is being left out of the conversation. And that's the reason for our stability and our prosperity.

Whereas young people become accomplished in geometry and mathematics, and wise within these limits, prudent young people do not seem to be found. The reason is that prudence is concerned with particulars as well as universals, and particulars become known from experience, but a young person lacks experience, since some length of time is needed to produce it.

I see no good reason why the views given in this volume should shock the religious feelings of any one.

On a ruinous wall I came upon a poster dating from the previous year and announcing that 'six handsome bulls' would be killed in the arena on such and such a date. How forlorn its faded colours looked. Where were the handsome bulls and the handsome bull-fighters now? It appeared that even in Barcelona there were hardly any bullfights nowadays - for some reason all the best matadors were Fascists.

This is the reason why all attempts to obtain a deeper knowledge of the foundations of physics seem doomed to me unless the basic concepts are in accordance with general relativity from the beginning. This situation makes it difficult to use our empirical knowledge, however comprehensive, in looking for the fundamental concepts and relations of physics, and it forces us to apply free speculation to a much greater extent than is presently assumed by most physicists.

Albert Einstein

Now you fear punishment and beg for your lives, so I will let you free, if not for any other reason so that you can see the difference between a Greek king and a barbarian tyrant, so do not expect to suffer any harm from me. A king does not kill messengers.

Alexander the Great

Nothing sublimely artistic has ever arisen out of mere art, any more than anything essentially reasonable has ever arisen out of pure reason. There must always be a rich moral soil for any great aesthetic growth.

G. K. Chesterton

When once a man is launched on such an adventure as this, he must bid farewell to hopes and fears, otherwise death or deliverance will both come too late to save his honor and his reason. Ho, my beauties!

No doubt the reason is that character cannot be developed in ease and quiet. Only through experience of trial and suffering can the soul be strengthened, vision cleared, ambition inspired, and success achieved.

We must hold a man amenable to reason for the choice of his daily craft or profession. It is not an excuse any longer for his deeds that they are the custom of his trade. What business has he with an evil trade?

Ralph Waldo Emerson

Whether you are a Christian, or a Muslim, or a Nationalist, we all have the same problem. They don't hang you because you're a Baptist; they hang you 'cause you're black. They don't attack me because I'm a Muslim; they attack me 'cause I'm black. They attack all of us for the same reason — all of us catch hell from the same enemy. We're all in the same bag, in the same boat. We suffer political oppression, economic exploitation, and social degradation all of them from the same enemy.

The only reason why God created man is because he was disappointed with the monkey.

Every genuine work of art has as much reason for being as the earth and the sun.

Ralph Waldo Emerson

It is not without good reason said, that he who has not a good memory should never take upon him the trade of lying.

Michel de Montaigne

I have learned to be less confident in the conclusions of human reason, and give more credit to the honesty of contrary opinions.

Thomas Jefferson

A knowledge of the existence of something we cannot penetrate, of the manifestations of the profoundest reason and the most radiant beauty - it is this knowledge and this emotion that constitute the truly religious attitude; in this sense, and in this alone, I am a deeply religious man.

Albert Einstein