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

The unknown is the largest need of the intellect.

New things are always ugly.

I learned to make my mind large, as the universe is large, so that there is room for paradoxes.

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

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

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

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

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

Appearances are a glimpse of the obscure.

Science is a cemetery of dead ideas.

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

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