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

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

What one man can invent another can discover.

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

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

Appearances are a glimpse of the obscure.

The unknown is the largest need of the intellect.

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

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

There are truths that prove their discoverers witless.

The eternal mystery of the world is its comprehensibility.

New things are always ugly.

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