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 among those who think that science has great beauty.

You cannot hope to build a better world without improving the individuals.

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

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.

The sensitive plate, the gas which is ionised, the fluorescent screen, are in reality receivers, into another kind of energy, chemical energy, ionic energy... luminous energy.

Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something, and that this thing, at whatever cost, must be attained.