Appearances are a glimpse of the obscure.

What one man can invent another can discover.

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

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

What one man can invent another can discover.

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

Science is a cemetery of dead ideas.

When they shout “Long live progress,” always ask, “Progress of what?”

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

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

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

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.