The unknown is the largest need of the intellect.

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

True originality consists not in a new manner but in a new vision.

Nature has planted in our minds an insatiable desire to seek the truth.

Science is a cemetery of dead ideas.

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

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

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

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

How gloriously legible are the constellations of the heavens!