The whole of science is nothing more than a refinement of everyday thinking.

Knowledge is a polite word for dead but not buried imagination.

Opinion is the medium between knowledge and ignorance.

An investment in knowledge pays the best interest.

Don’t only practice your art, but force your way into its secrets; art deserves that, for it and knowledge can raise man to the Divine.

Evolution was far more thrilling to me than the biblical account. Who would not rather be a rising ape than a falling angel? To my juvenile eyes, Darwin was proved true every day. It doesn’t take much to make us flip back into monkeys again.

There is nothing new in the world except the history you do not know.

I don’t usually admire Sarah Palin, but when she was making fun of this ‚hopey changey stuff,‘ she was right: there was nothing there.

Thought must be divided against itself before it can come to any knowledge of itself.

Those who forget good and evil and seek only to know the facts are more likely to achieve good than those who view the world through the distorting medium of their own desires.

The Koran shows every sign of being thrown together by human beings, as do all the other holy books.

It takes considerable knowledge just to realize the extent of your own ignorance.

The secret of ugliness consists not in irregularity, but in being uninteresting.

Where there is shouting, there is no true knowledge.

There are things known and there are things unknown, and in between are the doors of perception.

Science does not know its debt to imagination.

I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.

The reactionary is always willing to take a progressive attitude on any issue that is dead.

As scientists, we step on the shoulders of science, building on the work that has come before us – aiming to inspire a new generation of young scientists to continue once we are gone.

I’m the first to admit this whole salary thing is getting out of control. In the final analysis, it’s still about the work.

Truly fertile Music, the only kind that will move us, that we shall truly appreciate, will be a Music conducive to Dream, which banishes all reason and analysis. One must not wish first to understand and then to feel. Art does not tolerate Reason.

Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.

But although all our knowledge begins with experience, it does not follow that it arises from experience.

More people should read books. It’s the most concentrated experience you can have.

True friendship can afford true knowledge. It does not depend on darkness and ignorance.

All the knowledge I possess everyone else can acquire, but my heart is all my own.

There is nothing so stupid as the educated man if you get him off the thing he was educated in.

It makes a great deal of difference whether one wills not to sin or has not the knowledge to sin.

Politically there were failures. And also on the personal level, there were tremendous failures.

There is no excellent beauty that hath not some strangeness in the proportion.

I’m strictly for Stevenson. I don’t dig the intellectual bit, but I’m telling you, man, he knows the most.

When we value correct principles, we have truth – a knowledge of things as they are.

A physician without a knowledge of Astrology has no right to call himself a physician.

When I did A Soldier’s Story, I was very young and green and thought I knew everything-now I know I know everything!

The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

Science is beautiful when it makes simple explanations of phenomena or connections between different observations. Examples include the double helix in biology and the fundamental equations of physics.

Mistakes are, after all, the foundations of truth, and if a man does not know what a thing is, it is at least an increase in knowledge if he knows what it is not.

One cannot develop taste from what is of average quality but only from the very best.

The god whom science recognizes must be a God of universal laws exclusively, a God who does a wholesale, not a retail business. He cannot accommodate his processes to the convenience of individuals.

You know, crankiness is at the essence of all comedy.

Education is important because it prepares you for life.

The grand aim of all science is to cover the greatest number of empirical facts by logical deduction from the smallest number of hypotheses or axioms.

Those who have knowledge, don’t predict. Those who predict, don’t have knowledge.

To the wicked, everything serves as pretext.

Stupidity is a talent for misconception.

Science is not only a disciple of reason but, also, one of romance and passion.

The smaller the planets are, they are, other things being equal, of so much the greater density; for so the powers of gravity on their several surfaces come nearer to equality. They are likewise, other things being equal, of the greater density, as they are nearer to the sun.

It’s no wonder that truth is stranger than fiction. Fiction has to make sense.

It is the supreme art of the teacher to awaken joy in creative expression and knowledge.

The church saves sinners, but science seeks to stop their manufacture.

The mineral world is a much more supple and mobile world than could be imagined by the science of the ancients. Vaguely analogous to the metamorphoses of living creatures, there occurs in the most solid rocks, as we now know, perpetual transformation of a mineral species.

Science must have originated in the feeling that something was wrong.

The great end of life is not knowledge but action.

Pure mathematics is, in its way, the poetry of logical ideas.

Europe is so well gardened that it resembles a work of art, a scientific theory, a neat metaphysical system. Man has re-created Europe in his own image.

There is no gambling like politics.

The U.S. increasingly has taken on the characteristics of what we describe as ‚failed states.‘

Libraries raised me.

I cannot discover that anyone knows enough to say definitely what is and what is not possible.

My first popular book, ‚A Brief History of Time,‘ aroused a great deal of interest, but many found it difficult to understand.