Without Theory, Practice Is But

If Science Has No Country, The Scientist Should Have One, And Ascribe To It The Influence Which His Works May Have In This World.

Science Belongs To No One Country.

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.'

Nothing Is Lost And Nothing Is Created In The Operations Of Art As Those Of Nature.

Whatever Your Career May Be, Do Not Let Yourselves Become Tainted By A Deprecating And Barren Scepticism.