What one man can invent another can discover.

One doesn’t discover new lands without consenting to lose sight of the shore for a very long time.

The atavistic urge toward danger persists and its satisfaction is called adventure.

Appearances are a glimpse of the obscure.

I learned to make my mind large, as the universe is large, so that there is room for paradoxes.

They are ill discoverers that think there is no land, when they can see nothing but sea.

When they shout “Long live progress,” always ask, “Progress of what?”

New things are always ugly.

Most new discoveries are suddenly-seen things that were always there.

The eternal mystery of the world is its comprehensibility.