In the 21st century, I think the heroes will be the people who will improve the quality of life, fight poverty and introduce more sustainability.

The great challenge of the twenty-first century is to raise people everywhere to a decent standard of living while preserving as much of the rest of life as possible.

The 21st century simply means open century.

I think the environmental problem will be the number one item on the agenda of the 21st century... This is a problem that cannot be postponed.

I think the biggest problem of the 21st century is how to deal with minorities.

What the history of aviation has brought in the 20th century should inspire us to be inventors and explorers ourselves in the new century.