Chance favours the prepared mind.

“Messieurs, c'est les microbes qui auront le dernier mot." (Gentlemen, it is the…”

“Science knows no country, because knowledge belongs to humanity, and is the tor…”

“Dans les champs de l'observation le hasard ne favorise que les esprits prepares…”

“When I approach a child he inspires in me two sentiments tenderness for what he…”