What one man can invent another can discover.

The unknown is the largest need of the intellect.

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

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

I am tormented with an everlasting itch for things remote. I love to sail forbidden seas and land on barbarous coasts.

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

There are truths that prove their discoverers witless.

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

How gloriously legible are the constellations of the heavens!

Science is a cemetery of dead ideas.