2018 Spring Semester

When I orbited the Earth in a spaceship, I saw for the first time how beautiful our planet is. Mankind, let us preserve and increase this beauty, and not destroy it!

Science cuts two ways, of course; its products can be used for both good and evil. But there’s no turning back from science. The early warnings about technological dangers also come from science.

Spaceflights cannot be stopped. This is not the work of anyone man or even a group of men. It is a historical process that mankind is carrying out in accordance with the natural laws of human development.

Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.