The scarce water of Dune is an exact analog of oil scarcity. CHOAM is OPEC.

the meeting between ignorance and knowledge, between brutality and culture - it begins in the dignity with which we treat the dead

There exists a limit to the force even the most powerful may apply without destroying themselves. Judging this limit is the true artistry of government. Misuse of power is the fatal sin.

Most deadly errors arise from obsolete assumptions.

To endure oneself may be the hardest task in the universe. You cannot hire a wise man or any other intellect to solve it for you. There's no writ of inquest or calling of witness to provide answers.

They say they seek security and quiet, the condition they call peace. Even as they speak they create the seeds of turmoil and violence.

The real universe is always one step beyond logic.