He must have travelled everywhere, at least in the spirit.

Well, gentlemen, do you believe in the possibility of aerial locomotion by machines heavier than air? ... You ask yourselves doubtless if this apparatus, so marvellously adapted for aerial locomotion, is susceptible of receiving greater speed. It is not worth while to conquer space if we cannot devour it. I wanted the air to be a solid support to me, and it is. I saw that to struggle against the wind I must be stronger than the wind, and I am.

Science, my lad, has been built upon many errors; but they are errors which it was good to fall into, for they led to the truth.

On the morrow the horizon was covered with clouds- a thick and impenetrable curtain between earth and sky, which unhappily extended as far as the Rocky Mountains. It was a fatality!

All that is impossible remains to be accomplished.

We now know most things that can be measured in this world, except the bounds of human ambition!

The sole precoccupation of this learned society was the destruction of humanity for philanthropic reasons and the perfection of weapons as instruments of civilization.