Appearances are a glimpse of the obscure.

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

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

Science is a cemetery of dead ideas.

What one man can invent another can discover.

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

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

What one man can invent another can discover.

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

The unknown is the largest need of the intellect.