The only limit to our realization of tomorrow is our doubts of today.

我从来不是一个在意别人说什么的人，我就是我。

The most valuable resource in our industry isn't under the ground; it's the people who make things happen.

The rise of China and the resurgence of Russia have challenged the idea that liberal democracy is the only viable form of government.

孤独是可怕的——确实如此——但与人在一起仍然感到孤独也同样可怕。