Now is the time to understand more, so we fear less.

It is my earnest desire that some of you should carry on this scientific work and keep for your ambition the determination to make a permanent contribution to science.

After all, science is essentially international, and it is only through lack of the historical sense that national qualities have been attributed to it.

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.

I have the best husband one could dream of; I could never have imagined finding one like him. He is a true gift of heaven, and the more we live together the more we love each other.

All my life through, the new sights of Nature made me rejoice like a child.

Stability can only be attained by inactive matter.