Science is a cemetery of dead ideas.

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

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.

The unknown is the largest need of the intellect.

Appearances are a glimpse of the obscure.

There are truths that prove their discoverers witless.

What one man can invent another can discover.

The eternal mystery of the world is its comprehensibility.

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