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

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

Appearances are a glimpse of the obscure.

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

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

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

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

What one man can invent another can discover.

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

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