Half the world is laughing at the other half, and all are fools.

They could not understand the advantage of living contrary to their inclinations in this world in order to enjoy a hypothetical well-being in another.

The image of the world is half the world.

Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.

I have not the pleasure of understanding you.

The fact that people don’t get along all the time suggests that we don’t understand or value the ways other people see the world. A

The trouble today,” he wrote, “is that the Communist world understands unity but not liberty, while the free world understands liberty but not unity. Eventual victory may be won by the first of the two sides to achieve the synthesis of both liberty and unity.

By Crom, though I've spend considerable time among you civilized peoples, your ways are still beyond my comprehension

I’m not sure we can understand another country if we don’t understand our own.

Oh ignorant youth, the world is not a joyous place.

People judge what they do not understand

The world is incomprehensible. We won’t ever understand it; we won’t ever unravel its secrets. Thus we must treat the world as it is: a sheer mystery.

What senses do we lack that we cannot see or hear another world all around us?

Do you not think that there are things which you cannot understand, and yet which are; that some people see things that others cannot?