One should choose for a wife only such a woman as he would choose for a friend, were she a man.

To the liberal ideas of the age must be opposed the moral ideas of all ages.

I quit Paris unwillingly, because I must part from my friends; and I quit the country unwillingly, because I must part from myself.

Fear loves the idea of danger.

Music has seven letters, writing has twenty-six notes

Only just the right quantum of wit should be put into a book; in conversation a little excess is allowable.

What can one possibly introduce into a mind that is already full, and full of itself?