The world changes materially. Science makes advances in technology and understanding. But the world of humanity doesn't change.

Science will provide the material basis for a spiritually mature technologically advanced civilisation, it will achieve its higher spiritual purpose of evolving all of humanity. No other spiritual, mystical or religious institution has ever been able to do this and never will.

It's true that humanity has seen a succession of crises, wars and atrocities, but this negative side is offset by advances in technology and cultural exchanges.

The advancement of science and technology alone cannot make humanity happy.

They didn't understand what they were doing.
I'm afraid that will be on the tombstone of the human race.

It can be argued that the computer is humanity’s attempt to replicate the human brain. This is perhaps an unattainable goal. However, unattainable goals often lead to outstanding accomplishment.