I think perhaps all of us go a little crazy at times.

People are demonstrably insane when it comes to assessing human sentience.

I think we're all a little bit crazy. But once we figure that out, we can start doing something about it.

Dictatorships, wars, and cruelty drive whole countries to madness. My theory is that the human species was crazy from the very first and that civilization and culture are only enhancing man’s insanity.
A Tale of Two Sisters

From an Enlightenment or Positivist point of view, which is Hume's point of view, and mine, there is simply no avoiding the conclusion that the human race is mad. There are scarcely any human beings who do not have some lunatic beliefs or other to which they attach great importance. People are mostly sane enough, of course, in the affairs of common life: the getting of food, shelter, and so on. But the moment they attempt any depth or generality of thought, they go mad almost infallibly. The vast majority, of course, adopt the local religious madness, as naturally as they adopt the local dress. But the more powerful minds will, equally infallibly, fall into the worship of some intelligent and dangerous lunatic, such as Plato, or Augustine, or Comte, or Hegel, or Marx.

As a species we're fundamentally insane. Put more than two of us in a room, we pick sides and start dreaming up reasons to kill one another. Why do you think we invented politics and religion?

Man is the most insane species. He worships an invisible God and destroys a visible Nature. Unaware that this Nature he's destroying is this God he's worshiping.

realize I’m making it sound like we’re all crazy, but that’s because we kind of are. Most people are living in an illusion based on someone else’s beliefs.

We are all born mad. Some remain so.

That's the secret of existence. We're all a little mad.

Looking at the Moonies from the normal, common-sense point of view, we certainly appear to be a bunch of crazy people!

As a species, we were an abomination. All of us.

The human race consists of the dangerously insane and such as are not.

Sometimes it’s only madness that makes us what we are.