The foundation of national morality must be laid in private families.
The best way to be successful is to learn from your mistakes.
和平不是战争的缺席，而是建立在性格坚强的美德之上。
只要能够改变你自己的头脑，你就可以永远保持年轻。
技术进步不可阻挡，但它必须为人类服务。
What other dungeon is so dark as one's own heart! What jailer so inexorable as one's self!