At St. Petersburg, if you are elaborating an invention, you go into a special laboratory, where you are given a place, a carpenter's bench, a turning lathe, all the necessary tools and scientific instruments, provided only you know how to use them; and you are allowed to work there as long as you please. There are the tools; interest others in your idea; join with fellow workers skilled in various crafts, or work alone if you prefer it. Invent a flying machine, or invent nothing-that is your own affair. You are pursuing an idea-that is enough.
