Don’t let us forget that the causes of human actions are usually immeasurably more complex and varied than our subsequent explanations of them.

When one is concerned with the mysterious and wonderful functioning of the human body, cause and effect are seldom simple and easily demonstrated relationships. They may be widely separated both in space and time. To discover the agent of disease and death depends on a patient piecing together of many seemingly distinct and unrelated facts developed through a vast amount of research in widely separated fields.

Some things in life are too complicated to explain in any language.

In the complex world, the notion of “cause” itself is suspect; it is either nearly impossible to detect or not really defined — another reason to ignore newspapers, with their constant supply of causes for things.

Because everything is interdependent, there are no simple, single causes and effects. Every action creates not just an equal and opposite reaction, but a web of reverberating consequences.

There's no way to know what makes one thing happen and not another. What leads to what. What destroys what. What causes what to flourish or die or take another course.

The causes of events are ever more interesting than the events themselves.

Complex systems are full of interdependencies — hard to detect — and nonlinear responses.

[...} many things must remain uncertain, and many a question insoluble, because what we know of nature is by no means sufficient, in all cases, to explain what has to be explained.

Human behavior is messy and unpredictable and unconcerned with convenient symmetries.

There isnt always an explanation for everything.

But fates are connected in ways we don’t understand.

The world is more random than we can imagine. That's what our emotions can't understand.

What can be described can happen too: and what the law of causality is meant to exclude cannot even be described.