My interest is in the future, because I am going to spend the rest of my life there.

I don’t try to describe the future. I try to prevent it.

Often the prudent, far from making their destinies, succumb to them; it is destiny which makes them prudent.

It would be madness, and inconsistency, to suppose that things which have never yet been performed can be performed without employing some hitherto untried means.

Every man takes the limits of his own vision for the limits of the world.