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

Science is a cemetery of dead ideas.

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

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

Most new discoveries are suddenly-seen things that were always there.

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

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.

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

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

What one man can invent another can discover.

Appearances are a glimpse of the obscure.

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