Virulence appears in a new light which cannot but be alarming to humanity; unless nature, in her evolution down the ages (an evolution which, as we now know, has been going on for millions, nay, hundreds of millions of years), has finally exhausted all the possibilities of producing virulent or contagious diseases - which does not seem very likely.

Science knows no country because it is the light that iluminates the world

Science brings men nearer to God.

Live in the serene peace of laboratories and libraries

Bernard was right. The germ is nothing, the terrain is everything.

Little science takes you away from God but more of it takes you to Him.

We affirm the neutrality of Science ... Science is of no country. ... But if Science has no country, the scientist must keep in mind all that may work towards the glory of his country. In every great scientist will be found a great patriot.