"Yes, perhaps you could say that. However, Hegel's philosophy was so all-embracing and diversified that for present purposes we shall content ourselves with highlighting some of the main aspects. It is actually doubtful whether one can say that Hegel had his own 'philosophy' at all. What is usually known as Hegel's philosophy is mainly a method for understanding the progress of history. Hegel's philosophy teaches us nothing about the inner nature of life, but it can teach us to think productively."
"That's not unimportant."
"All the philosophical systems before Hegel had had one thing in common, namely, the attempt to set up eternal criteria for what man can know about the world. This was true of Descartes, Spinoza, Hume, and Kant. Each and every one had tried to investigate the basis of human cognition. But they had all made pronouncements on the timeless factor of human knowledge of the world."
"Isn't that a philosopher's job?"
"Hegel did not believe it was possible. He believed that the basis of human cognition changed from one generation to the next. There were therefore no 'eternal truths/ no timeless reason. The only fixed point philosophy can hold on to is history itself."
"I'm afraid you'll have to explain that. History is in a constant state of change, so how can it be a fixed point?"
"A river is also in a constant state of change. That doesn't mean you can't talk about it. But you cannot say at which place in the valley the river is the 'truest' river."
"No, because it's just as much river all the way through."
"So to Hegel, history was like a running river. Every tiny movement in the water at a given spot in the river is determined by the falls and eddies in the water higher upstream. But these movements are determined, too, by the rocks and bends in the river at the point where you are observing it."
"I get it... I think."
"And the history of thought--or of reason--is like this river. The thoughts that are washed along with the current of past tradition, as well as the material conditions prevailing at the time, help to determine how you think. You can therefore never claim that any particular thought is correct for ever and ever. But the thought can be correct from where you stand."
"That's not the same as saying that everything is equally right or equally wrong, is it?"
"Certainly not, but some things can be right or wrong in relation to a certain historical context. If you advocated slavery today, you would at best be thought foolish. But you wouldn't have been considered foolish 2,500 years ago, even though there were already progressive voices in favor of slavery's abolition. But we can take a more local example. Not more than 100 years ago it was not considered unreasonable to burn off large areas of forest in order to cultivate the land. But it is extremely unreasonable today. We have a completely different--and better--basis for such judgments."
"Now I see."
"Hegel pointed out that as regards philosophical reflection, also, reason is dynamic; it's a process, in fact. And the 'truth' is this same process, since there are no criteria beyond the historical process itself that can determine what is the most true or the most reasonable."
"Examples, please."
"You cannot single out particular thoughts from antiquity, the Middle Ages, the Renaissance, or the Enlightenment and say they were right or wrong. By the same token, you cannot say that Plato was wrong and that Aristotle was right. Neither can you say that Hume was wrong but Kant and Schelling were right. That would be an antihistorical way of thinking."
"No, it doesn't sound right."
"In fact, you cannot detach any philosopher, or any thought at all, from that philosopher's or that thought's historical context. But--and here I come to another point--because something new is always being added, reason is 'progressive.' In other words, human knowledge is constantly expanding and progressing."
"Does that mean that Kant's philosophy is nevertheless more right than Plato's?"