“Religion is the masterpiece of the art of animal training, for it trains people as to how they shall think.”

“Martyrdom is the only way a man can become famous without ability.”

“The fundament upon which all our knowledge and learning rests is the inexplicable.”

“Patriotism, when it wants to make itself felt in the domain of learning, is a dirty fellow who should be thrown out of doors.”

“They tell us that suicide is the greatest piece of cowardice... that suicide is wrong when it is quite obvious that there is nothing in the world to which every man has a more unassailable title than to his own life and person.”

“We can come to look upon the deaths of our enemies with as much regret as we feel for those of our friends, namely, when we miss their existence as witnesses to our success.”

“In action a great heart is the chief qualification. In work, a great head.”

“Treat a work of art like a prince. Let it speak to you first.”