Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

Sustainability must be at the core of every chemical manufacturing process, or we risk leaving behind a world beyond repair.

For the eyes of the world now look into space, to the moon and to the planets beyond, and we have vowed that we shall not see it governed by a hostile flag of conquest, but by a banner of freedom and peace.

通往成功的道路永远在建设中。