The pursuit of science leads only to the insoluble.

The old believe everything, the middle-aged suspect everything, the young know everything.

I know nothing except the fact of my ignorance.

I love trying new things.

It is paradoxical, yet true, to say, that the more we know, the more ignorant we become in the absolute sense, for it is only through enlightenment that we become conscious of our limitations. Precisely one of the most gratifying results of intellectual evolution is the continuous opening up of new and greater prospects.

Many a trip continues long after movement in time and space have ceased.

When a man is tired of London, he is tired of life; for there is in London all that life can afford.

It’s a brilliant surface in that sunlight. The horizon seems quite close to you because the curvature is so much more pronounced than here on earth. It’s an interesting place to be. I recommend it.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

Fiction is not necessarily about what you know, it’s about how you feel. That is the truth about fiction, and the other truth is that all science is a tool, and we use our tools not to actualise what we know, but to implement how we feel.

The American doctor, in my opinion, possesses a combination of conservatism and that other quality which has put the United States in the forefront in almost every department of science – that is, an eagerness to know what it is really all about in order that he may not be the one left behind if there is something to it.

I think all documentaries leave out areas of people’s lives. Which is good. There are areas that need not be explored.

Perhaps, after all, America never has been discovered. I myself would say that it had merely been detected.

Is science of any value? I think a power to do something is of value. Whether the result is a good thing or a bad thing depends on how it is used, but the power is a value.

Knowledge about life is one thing; effective occupation of a place in life, with its dynamic currents passing through your being, is another.

Science and mindfulness complement each other in helping people to eat well and maintain their health and well-being.

I have found far greater enthusiasm for science in America than here in Britain. There is more enthusiasm for everything in America.

In every walk with nature one receives far more than he seeks.

There happen to be a lot of people around who spent an hour on the Internet and think they know a lot of physics, but it doesn’t work like that… There’s a reason there are graduate schools in these departments.

There are some Christian people who taste and see and enjoy religion in their own souls, and who get at a deeper knowledge of it than books can ever give them, though they should search all their days.

We are wiser than we know.

The endeavor to understand is the first and only basis of virtue.

All our dreams can come true, if we have the courage to pursue them.

The greatest and most important problems of life are all fundamentally insoluble. They can never be solved but only outgrown.

The true sign of intelligence is not knowledge but imagination.

Peace and friendship with all mankind is our wisest policy, and I wish we may be permitted to pursue it.

No one lives long enough to learn everything they need to learn starting from scratch. To be successful, we absolutely, positively have to find people who have already paid the price to learn the things that we need to learn to achieve our goals.

Every man who knows how to read has it in his power to magnify himself, to multiply the ways in which he exists, to make his life full, significant and interesting.

I’ve always been amazed by Da Vinci, because he worked out science on his own. He would work by drawing things and writing down his ideas. Of course, he designed all sorts of flying machines way before you could actually build something like that.

Science has explained nothing; the more we know the more fantastic the world becomes and the profounder the surrounding darkness.

A little learning is a dangerous thing; Drink deep, or taste not the Pierian spring.

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

Man lives for science as well as bread.

To understand a name you must be acquainted with the particular of which it is a name.

If you want to go somewhere, it is best to find someone who has already been there.

A man only learns in two ways, one by reading, and the other by association with smarter people.

Electricity is really just organized lightning.

Nature never breaks her own laws.

The one exclusive sign of thorough knowledge is the power of teaching.

Generally speaking, a howling wilderness does not howl: it is the imagination of the traveler that does the howling.

It is better to travel well than to arrive.

I have come to believe that this is a mighty continent which was hitherto unknown.

It is a profound and necessary truth that the deep things in science are not found because they are useful; they were found because it was possible to find them.

Before we understand science, it is natural to believe that God created the universe.

I believe that there are many herbs and many trees that are worth much in Europe for dyes and for medicines; but I do not know, and this causes me great sorrow. Arriving at this cape, I found the smell of the trees and flowers so delicious that it seemed the pleasantest thing in the world.

Money is usually attracted, not pursued.

All men are born with a nose and five fingers, but no one is born with a knowledge of God.

Science has revealed that the human body is made up of millions and millions of atoms… For example, I am made up of 5.8×10 27 atoms.

Exploration by real people inspires us.

Theoretical physics is one of the few fields in which being disabled is no handicap – it is all in the mind.

For my own part, I would rather excel in knowledge of the highest secrets of philosophy than in arms.

For centuries, theologians have been explaining the unknowable in terms of the-not-worth-knowing.

Men are born ignorant, not stupid. They are made stupid by education.

By denying scientific principles, one may maintain any paradox.

We’ve arranged a civilization in which most crucial elements profoundly depend on science and technology.

No man can reveal to you nothing but that which already lies half-asleep in the dawning of your knowledge.

I’m for women choosing whatever they want to do but they have to really know what they are doing.

The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?

Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.

We will explore the mysteries of science and harness the power of technology and innovation. We will realise the opportunities of the digital world. Our youth will learn more from – and with – each other.

Adventuring can be for the ordinary person with ordinary qualities, such as I regard myself.