The eternal mystery of the world is its comprehensibility.

What one man can invent another can discover.

A man of genius makes no mistakes. His errors are volitional and are the portals of discovery.

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

The discovery of a new dish does more for human happiness than the discovery of a star.

There are truths that prove their discoverers witless.

Research is formalized curiosity. It is poking and prying with a purpose. 

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

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

One sees great things from the valley; only small things from the peak.

How gloriously legible are the constellations of the heavens!

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?”