“Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust. You couldn’t be here if stars hadn’t exploded, because the elements - the carbon, nitrogen, oxygen, iron, all the things that matter for evolution and for life - weren’t created at the beginning of time. They were created in the nuclear furnaces of stars, and the only way for them to get into your body is if those stars were kind enough to explode. So, forget Jesus. The stars died so that you could be here today.” Lawrence M. Krauss

“A 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 Krauss

“Science is a human activity, and the best way to understand it is to understand the individual human beings who practice it. Science is an art form and not a philosophical method. The great advances in science usually result from new tools rather than from new doctrines. If we try to squeeze science into a single philosophical viewpoint such as reductionism, we are like Procrustes chopping off the feet of his guests when they do not fit onto his bed. Science flourishes best when it uses freely all the tools at hand, unconstrained by preconceived notions of what science ought to be. Every time we introduce a new tool, it always leads to new and unexpected discoveries, because Nature’s imagination is richer than ours.” Freeman Dyson

“In 5 billion years, the expansion of the universe will have progressed to the point where all other galaxies will have receded beyond detection. Indeed, they will be receding faster than the speed of light, so detection will be impossible. Future civilizations will discover science and all its laws, and never know about other galaxies or the cosmic background radiation. They will inevitably come to the wrong conclusion about the universe……. We live in a special time, the only time, where we can observationally verify that we live in a special time." Lawrence Krauss

“A lot of what we’ve learned about science tells us that our "common sense” it’s just wrong. We evolved to avoid lions on the savanna, not to understand quantum mechanics, so the fact that our common sense is wrong is not such a bad thing, it’s called learning.

The fact that we have to change our minds shouldn’t be a threat, it’s a wonderful thing to force your beliefs to conform to the evidence of reality. 

It’s amazing to discover you are wrong, in fact, it’s liberating. That’s one of the great things about science. It opens your mind.“ Lawrence Krauss