In clothes clean and fresh there is a kind of youth with which age should surround itself.
Virtue by calculation is the virtue of vice.
He who has not the weakness of friendship has not the strength.
In bringing up a child, think of its old age.
There are single thoughts that contain the essence of a whole volume, single sentences that have the beauties of a large work.
God multiplies intelligence, which communicates itself, like fire, ad infinitum. Light a thousand torches at one touch, the flame remains always the same.