The foundation of national morality must be laid in private families.

Every ounce of metal we produce carries with it the weight of our environmental commitments.

人生像一匹马，你不驾驭它，它便驾驭你。

The best moments in our lives are not the passive, receptive, relaxing times… The best moments usually occur if a person’s body or mind is stretched to its limits in a voluntary effort to accomplish something difficult and worthwhile.

发现的兴奋感永远不会过时。