“The world only goes forward because of those who oppose it.”

“He who moves not forward, goes backward.”

“I love those who yearn for the impossible.”

“The affairs of the world are no more than so much trickery, and a man who toils for money or honour or whatever else in deference to the wishes of others, rather than because his own desire or needs lead him to do so, will always be a fool.”

“Those who know nothing of foreign languages know nothing of their own.”

“None are more hopelessly enslaved than those who falsely believe they are free”

“And those whom once my song had cheered and gladdened,If still they live, rove through the world now saddened.”