Now, almost one hundred years later, it is difficult to fully appreciate how much our picture of the universe has changed in the span of a single human lifetime. As far as the scientific community in 1917 was concerned, the universe was static and eternal, and consisted of a one single galaxy, our Milky Way, surrounded by vast, infinite, dark, and empty space. This is, after all, what you would guess by looking up at the night sky with your eyes, or with a small telescope, and at the time there was little reason to suspect otherwise.
Lawrence M. KraussThe ultimate goal of physicists is to arrive at an equation that explains everything and could fit on a t-shirt. That may happen but the t-shirt would have to be 10-dimensional.
Lawrence M. KraussNothing can create something all the time due to the laws of quantum mechanics, and it's - it's fascinatingly interesting.
Lawrence M. KraussFor, after all, in science one achieves the greatest impact (and often the greatest headlines) not by going along with the herd, but by bucking against it.
Lawrence M. KraussA universe without purpose should neither depress us nor suggest that our lives are purposeless. Through an awe-inspiring cosmic history we find ourselves on this remote planet in a remote corner of the universe, endowed with intelligence and self-awareness. We should not despair, but should humbly rejoice in making the most of these gifts, and celebrate our brief moment in the sun.
Lawrence M. Krauss