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

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

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

New things are always ugly.

Science is a cemetery of dead ideas.

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

The unknown is the largest need of the intellect.

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

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

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