Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.

I answer that, Even, as in the blessed in heaven there will be most perfect charity, so in the damned there will be the most perfect hate.

Far graver is it to corrupt the faith that is the life of the soul than to counterfeit the money that sustains temporal life.

He who is dying of hunger must be fed rather than taught.

Practical sciences proceed by building up; theoretical science by resolving into components.

Sorrow can be alleviated by good sleep, a bath and a glass of wine.

Because we cannot know what God is, but only what He is not, we cannot consider how He is but only how He is not.