- "Do not saddle yourself with fools: he is one who does not know them, and a greater, he who knowing them, does not shake them off.''
- "Know how to forget, even though it's more luck than art."
- "Neither be all, nor give all to anyone."
- "Leave something to be desired."
- "Know how to refresh the spirit, through nature and through art."
- "Keep in mind the happy ending."
In the afterword, the translator, Martin Fisher, remarks on how Gracian's writings have held up over the centuries: "The estimates of Gracian as man or philosopher or writer run from the extremes of praise or to the extremes of condemnation...he praises the golden mean and that perhaps best characterizes him."