Man...is a tame or civilized animal; never the less, he requires proper instruction and a fortunate nature, and then of all animals he becomes the most divine and most civilized; but if he be insufficiently or ill- educated he is the most savage of earthly creatures.

Complacent ignorance is the most lethal sickness of the soul

The cure of many diseases is unknown to physicians because they are ignorant of the whole... For the part can never be well unless the whole is well.

Lack of activity destroys the good condition of every human being

The makers of fortunes have a second love of money as a creation of their own, resembling the affection of authors for their own poems, or of parents for their children, besides that natural love of it for the sake of use and profit.

Not one of them who took up in his youth with this opinion that there are no gods ever continued until old age faithful to his conviction.

No man should bring children into the world who is unwilling to persevere to the end in their nature and education.