“Every valuable human being must be a radical and a rebel, for what he must aim at is to make things better than they are.”

There is no hope for any speculation that does not look absurd at first glance.

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.

If we couldn’t laugh at ourselves, that would be the end of everything.

An expert is a man who has made all the mistakes which can be made, in a narrow field.

Physics is the belief that a simple and consistent description of nature is possible.

Some subjects are so serious that one can only joke about them.

Sometimes the child in one behaves a certain way and the rest of oneself follows behind, slowly shaking its head.

It is, indeed, perhaps the greatest prospect of humanistic studies to contribute through an increasing knowledge of the history of cultural development to that gradual removal of prejudices which is the common aim of all science.

We all know your idea is crazy. The question is whether it is crazy enough.

When it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images and establishing mental connections.

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

Everything we call real is made of things that cannot be regarded as real.

It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we say about nature.

If you aren’t confused by quantum mechanics, you haven’t really understood it.

And anyone who thinks they can talk about quantum theory without feeling dizzy hasn’t yet understood the first thing about it.

The moral landscape is the framework I use for thinking about questions of morality and human values in universal terms.

The only thing that permits human beings to collaborate with one another in a truly open-ended way is their willingness to have their beliefs modified by new facts. Only openness to evidence and argument will secure a common world for us.

Religious faith is the one species of human ignorance that will not admit of even the possibility of correction.

The nature of how we are as human beings is that we’re much more interested in being critical rather than praising something.

Iblis (satan) himself recognizes the Lordship of Allah, but wants the human being to forget it.

Human freedom is not an illusion; it is an objective phenomenon, distinct from all other biological conditions and found in only one species – us.

Curious how often you Humans manage to obtain that which you do not want.

We’re all flawed human beings and we all have a cauldron of psychosis which we have to unravel as we grow older and find the way we fit in to live our lives as best as possible.