It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.

But the real glory of science is that we can find a way of thinking such that the law is evident.

I think it's much more interesting to live not knowing than to have answers which might be wrong.

We have been led to imagine all sorts of things infinitely more marvelous than the imagining of poets and dreamers of the past. It shows that the imagination of nature is far, far greater than the imagination of man. For instance, how much more remarkable it is for us all to be stuck-half of us upside down-by a mysterious attraction, to a spinning ball that has been swinging in space for billions of years, than to be carried on the back of an elephant supported on a tortoise swimming in a bottomless sea.

Science is the belief in the ignorance of experts.

I don't feel frightened by not knowing things, by being lost in the mysterious universe without any purpose - which is the way it really is, as far as I can tell. Possibly. It doesn't frighten me.

I wonder why. I wonder why. I wonder why I wonder.