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

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

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

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

How gloriously legible are the constellations of the heavens!

What one man can invent another can discover.

Appearances are a glimpse of the obscure.

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

The eternal mystery of the world is its comprehensibility.

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