Supreme Good is that which is honorable

… what good is there in breaking it up into tiny bits, when you can say: the Supreme Good is that which is honorable? Besides (and you may be still more surprised at this), that which is honorable is the only good; all other goods are alloyed and debased. If you once convince yourself of this, and if you come to love virtue devotedly (for mere loving is not enough), anything that has been touched by virtue will be fraught with blessing and prosperity for you, no matter how it shall be regarded by others. Torture, if only, as you lie suffering, you are more calm in mind than your very torturer; illness, if only you curse not Fortune and yield not to the disease—in short, all those things which others regard as ills will become manageable and will end in good, if you succeed in rising above them.

Seneca, Epistulae Morales ad Lucilium, LXXI. ON THE SUPREME GOOD