人类的声音是所有乐器中最完美的。

Technology should serve human nature, not change it.

人类最大的敌人是自己。

The only limit to our realization of tomorrow will be our doubts of today.

And that's a lot of the reason why we care so much about our careers and indeed start caring so much about material goods. You know, we're often told that we live in very materialistic times, that we're all greedy people. I don't think we are particularly materialistic. I think we live in a society which has simply pegged certain emotional rewards to the acquisition of material goods. It's not the material goods we want;