The only thing that can bring joy is work.
... by chance you will say, but chance only favors the mind which is prepared.
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.
Chance favors the prepared mind.
Life comes only from life.
To know how to wonder and question is the first step of the mind toward discovery.