Is it right to probe so deeply into Nature's secrets? The question must here be raised whether it will benefit mankind, or whether the knowledge will be harmful.

It is important to make a dream of life and a dream reality.

It would be a fine thing, in which I hardly dare believe, to pass our lives near each other, hypnotized by our dreams.

Alfred Nobel's discoveries are characteristic; powerful explosives can help men perform admirable tasks. They are also a means to terrible destruction in the hands of the great criminals who lead peoples to war.

Is it right to probe so deeply into Nature's secrets? The question must here be raised whether it will benefit mankind, or whether the knowledge will be harmful.

Radium could be very dangerous in criminal hands.