“A patriot is one who loves his homeland. A nationalist is one who scorns the homelands of others.”

“Anger should be especially kept down in punishing, because he who comes to punishment in wrath will never hold that middle course which lies between the too much and the too little. It is also true that it would be desirable that they who hold the office of Judges should be like the laws, which approach punishment not in a spirit of anger but in one of equity.”

“The only true immortality lies in one's children.[Letter to his friend, Richard Heuberger]”

“Geometry has two great treasures; one is the Theorem of Pythagoras; the other, the division of a line into extreme and mean ratio. The first we may compare to a measure of gold; the second we may name a precious jewel.”

“You have both contested well: the one is forced by his sorrow to lament, the other by the plaintiff’s attack to tell the truth. So plaintiff, yours is the honour! And Death, yours is the victory! Every man is obliged to give his life to Death, his body to the earth, and his soul to Us.”

“As long as a man has, he must give. And when he has nothing more, he is free. This freedom is far nobler than the former giving, for he no longer gives in accident but in essence, and he no longer gives one gift, but all gifts, and he no longer gives to just one man, but to all men.”

“... if the Englishman does not disclose his soul, he readily opens his home. A Frenchman may reveal his life secrets after half an hour's aquaintance. But he does not ask one home.”