Life Comes Only From Life.

Do Not Promote What You Can't Explain, Simplify, And Prove Early.

Where Are The Real Sources Of Human Dignity, Freedom And Modern Democracy, If Not In The Concept Of Infinity To Which All Men Are Equal?

In The Fields Of Observation Chance Favors Only Those Minds Which Are Prepared.

Preconceived Ideas Are Like Searchlights Which Illumine The Path Of The Experimenter And Serve Him As A Guide To Interrogate Nature. They Become A Danger Only If He Transforms Them Into Fixed Ideas-this Is Why I Should Like To See These Profound Words Inscribed On The Threshold Of All The Temples Of Science: 'the Greatest Derangement Of The Mind Is To Believe In Something Because One Wishes It To Be So.'

Science Knows No Country Because It Is The Light That Iluminates The World