Radiation, unlike smoking, drinking, and overeating, gives no pleasure, so the possible victims object.

It has always been my ambition to die in harness with my head face down on a keyboard and my nose caught between two of the keys.

No one suggests that writing about science will turn the entire world into a model of judgment and creative thought. It will be enough if they spread the knowledge as widely as possible.

It is not only the living who are killed in war.

Science does not promise absolute truth, nor does it consider that such a thing necessarily exists. Science does not even promise that everything in the Universe is amenable to the scientific process.

The whole world might know you and acclaim you, but someone in the past, forever unreachable, forever unknowing, spoils it all.

The greatest weapons in the conquest of knowledge are an understanding mind and the inexorable curiosity that drives it on.