Once you are dancing with the devil, the prettiest capers won't help you.

How prone poor Humanity is to dam up the minutest remnants of its freedom, and build an artificial roof to prevent it looking up to the clear blue sky.

Is it not in the most absolute simplicity that real genius plies its pinions the most wonderfully?

Knowing without seeing is at the heart of chemistry.

It is nearly always the most improbable things that really come to pass.

Think of the wonderful circles in which our whole being moves and from which we cannot escape no matter how we try. The circler circles in these circles.

From a chemist's point of view, the surface or interior of a star…is boring—there are no molecules there.

It is useless to contend with the irresistible power of Time, which goes on continually creating by a process of constant destruction.

I learned English, my sixth language at this point, quite quickly.

I came to a happy Jewish family in dark days in Europe.

Arms control has to have a future, or none of us does. But it doesn't necessarily have to come in big packages of 600-page treaties.

Your life-blood is humanism. If it flows pure and clear, everything would happen nicely in the world - every defect in the society shall be healed.

One man with courage makes a majority.

Nowhere have the forces of intolerance been displayed less tolerantly than in the area of religious speech and practice.

In the pursuit of knowledge, follow it wherever it is to be found; like fern, it is the produce of all climates, and like coin, its circulation is not restricted to any particular class.

Nobody sits alone accompanied only by a stewing ambition that won't see fruit for years. Ambition is something you turn into publicity before there's anything to publicize.

Painting is of course multifarious, and for all of us the goal is, gaining control without impeding the creative process.

Love thou rose, yet leave it on its stem.

As it grows ever more complicated today, musical art seeks out combinations more dissonant, stranger, and harsher for the ear. Thus, it comes ever closer to the noise-sound.

The American press has the blues. Too many authorities have assured it that its days are numbered, too many good newspapers are in ruins.