New things are always ugly.

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

What one man can invent another can discover.

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

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

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

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.

The unknown is the largest need of the intellect.

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