Scientists study the world as it is, engineers create the world that never has been.

Some fear flutter because they do not understand it. And some fear it because they do.

This speaker reminds me of my childhood in Budapest. There were gypsy magicians who came to town to entertain us children. But as I recollect, there was one important difference: the gypsy only seemed to violate the laws of nature, he never really violated them!

I came to realize that exaggerated concern about what others are doing can be foolish. It can paralyze effort, and stifle a good idea. One finds that in the history of science, almost every problem has been worked out by someone else. This should not discourage anyone from pursuing his own path.

Science is the study of what Is, Engineering builds what Will Be. The scientist merely explores that which exists, while the engineer creates what has never existed before.

I am quite pessimistic about ever achieving interstellar travel.

A scientist describes what is. An engineer creates what never was.