20th century Quote by Wellington Mara

We believe human begins have existed for only a small fraction of cosmic history, because human race has been improving so rapidly in knowledge…

— Stephen Hawking

The twentieth century may well find historical status as the epoch in which man began to study himself as a scientific phenomenon.

— Timothy Leary

The greatest achievements in the science of this [twentieth] century are themselves the sources of more puzzlement than human beings have ever experienced. Indeed,…

— Lewis Thomas

People have contemplated the origin and evolution of the universe since before the time of Aristotle. Very recently, the era of speculation has given…

— George Smoot

With the emergence of civilization, the rate of change shifted from hundreds of thousands of years to millennia. With the emergence of science as…

— William Irwin Thompson

In any case, in so far as our knowledge of the universe carries us, the advent of civilization for the first time on our…

— James Henry Breasted

In fact, the 20th century I think was the most fascinating century and the whole of man civilization because so much happened.

— Joan Collins

“It is perhaps worth noticing that we have arrived 'on the scene' at a fairly early date. By this I mean that the time…

— Jamal Nazrul Islam

After all, the universe required ten billion years of evolution before life was even possible; the evolution of the stars and the evolving of…

— John Polkinghorne

Our modern conception of the universe is so foreign to what even scientists generally believed a mere century ago that it is a tribute…

— Lawrence M. Krauss

“We've been around for the tiniest sliver of cosmic time, yet our science can already take us across sixty orders of magnitude in scale.…

— Caleb Scharf

It has become part of the accepted wisdom to say that the twentieth century was the century of physics and the twenty-first century will…

— Freeman Dyson