Big Bang

From Big Bang: The Story of the Universe, Heather Cooper and Nigel Henbest, make this
statement:
In the beginning there was nothing. It was a nothing so
profound it defies human comprehension. A long, long time
ago, there was no matter and no radiation. More
importantly, space did not exist. Time did not flow. Our
story begins, once upon a time when there was no space
and there was no time, from nothing a tiny speck of
brilliant light appeared. It was almost infinitely hot. Inside
this fireball was all of space. With the creation of space
came the birth of time. The energy in the fireball was so
concentrated that matter spontaneously started to appear: a
distant ancestor of the matter that would later become the
building blocks of stars, planets, and galaxies. The infant
universe hit the ground running. As soon as the fireball
appeared, it started expanding not into anything, but
throughout, because the universe was and is everything
everywhere. (Cooper and Henbest 8-10)
If you are having difficulty understanding what they said, so am I. These are examples of statements regarding the origin of the universe which you can find in any high school textbook.