Prefer that is Ordinary!

 Seneca : Pg.16: Letters from a Stoic :

Quality of a great soul is to 

scorn great things and 

to prefer that is ordinary

Too rich a soil makes grain fall flat

Branches break under too heavy a load

Excessive productiveness does not bring a fruit to ripeness

so is the soul, that gets ruined by uncontrolled prosperity

Prefer that is ordinary

and you place yourself beyond the jurisdiction of Chance!