To wonder at nothing when it happens, to consider nothing impossible before it has come to pass.
Let reason govern desire.
Nothing troubles you for which you do not yearn.
Men of different tastes have different pursuits.
A careful physician . . . before he attempts to administer a remedy to his patient, must investigate not only the malady of the man he wishes to cure, but also his habits when in health, and his physical constitution.
Virtue is uniform, conformable to reason, and of unvarying consistency; nothing can be added to it that can make it more than virtue; nothing can be taken from it, and the name of virtue be left.