In matters of observation chance favors only the prepared mind. (not literal translation) - Dan's les champs de observation le hasard ne favorise que les esprits prepares.
... by chance you will say, but chance only favors the mind which is prepared.
In the fields of observation chance favors only those minds which are prepared.
Chance favors those who are prepared.
Did you ever observe to whom the accidents happen? Chance favors only the prepared mind.
Fortune favors the well-prepared.
La fortuna juega a favor de una mente preparada
In the fields of observation chance favors only the prepared mind.