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

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.

A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.

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.

You cannot hope to build a better world without improving the individuals. To that end each of us must work for our own improvement, and at the same time share a genaral responsibility for all humanity, our particular duty being to aid those to whom we think can be most useful.

When one studies strongly radioactive substances special precautions must be taken if one wishes to be able to take delicate measurements. The various objects used in a chemical laboratory and those used in a chemical laboratory, and those which serve for experiments in physics, become radioactive in a short time and act upon photographic plates through black paper. Dust, the air of the room, and one's clothes all become radioactive.

Each of us must work for his own improvement, and at the same time share a general responsibility for all humanity.