Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.

Certein bodies... become luminous when heated. Their luminosity disappears after some time, but the capacity of becoming luminous afresh through heat is restored to them by the action of a spark, and also by the action of radium.

I am one of those who think, like Nobel, that humanity will draw more good than evil from new discoveries.

I have no dress except the one I wear every day. If you are going to be kind enough to give me one, please let it be practical and dark so that I can put it on afterwards to go to the laboratory.

I am one of those who think like Nobel, that humanity will draw more good than evil from new discoveries.

There are sadistic scientists who hurry to hunt down errors instead of establishing the truth.

Nothing in this world is to be feared... only understood.