The unknown is the largest need of the intellect.

Appearances are a glimpse of the obscure.

New things are always ugly.

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

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

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

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

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

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

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