“Do not believe in anything simply because you have heard it. Do not believe in anything simply because it is spoken and rumored by many. Do not believe in anything simply because it is found written in your religious books. Do not believe in anything merely on the authority of your teachers and elders. Do not believe in traditions because they have been handed down for many generations. But after observation and analysis, when you find that anything agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it.”

(Hindu Prince Gautama Siddharta, the founder of Buddhism, 563-483 B.C.)

If we reject received ideas and observe and analyze the world around us we gain insight that reflects the only truth we have — our own impressions. This doesn’t mean we should ignore everyone else, our mental and emotional reactions can provide valuable impressions, too. But we should not simply accept without first deciding whether we can reasonably agree.

We can be skeptical about our impressions, too. We can logically conclude that none of our impressions are reliable, that we can’t be sure that the world exists. But, as Schopenhauer concluded (in The World as Will and Representation), what do we gain by such a conclusion? What do we have to gain from saying that we can’t believe in anything? This conclusion leads us to a dead end.

If we accept that our impressions are indeed impressions, that they are, for the most part, not fictions, then we have a place to work from. We can begin to analyze which of our impressions seem more reliable, more complete, more reasonable. We can discuss our impressions with others and find out whether they share the same impressions. We can form hypotheses based on our impressions and see whether we can validate these hypotheses. When we accept an impression as an impression, a whole world of potential understanding opens up.

With his theory of forms or Ideas Plato recognized that in order to hypothesize and analyze we use abstract concepts. Whenever we think about something in general terms (chairs as opposed to “this chair I’m sitting on”) we use abstract concepts. (As I think about this, as I have before, I conclude that consciousness is the ability to manipulate abstract concepts.) So what are the forms or concepts that shape our existence?

This question has nagged at people for thousands of years. But given what we know about the world (through observation and analysis) we can now set out the answer!

It’s important to go back to Schopenhauer. Schopenhauer’s philosophy made great strides in identifying the principles or abstract concepts through which we can understand our existence. He recognized that our impressions of existence come to us through what he called a “fourfold root.” The fourfold root was the three dimensions of space and time (or causality).

All of our impressions concur with the idea that space has three dimensions and that things exist through time governed by the principle of cause and effect.

What Schopenhauer didn’t understand (because not enough was known at the time of the way that the universe evolves over time) was that the earth and heaves weren’t a fixed and static thing, that our existence follows after a whole long stream of prior events. We now know a great deal about that string of events. We can see back in time by looking out into space, and by digging through the layers of earth beneath our feet. We have a great deal of insight into the evolution of the universe.

This insight into the evolution of the universe adds to Schopenhauer’s principles. It tells us that existence isn’t static. That the matter in the universe consists of energy. And that energy changes from one form to another.

So what is the principle by which the evolution of existence has lead to our existence? As I describe in my book, the principle is one of persistence: The more likely a form is to persist, the more likely it is to remain in existence.

This applies to the persistence of fundamental particles, cosmological systems, molecules, and life.